#js array functions

[sophia--studies]

100 days of code - day 17

01.11.23

Objects

Today, I read an article about JS objects, that are associative arrays with key: value, like hash_maps. The key will be basically be treated as a string and the value can be of any type, including another object. They are declared inside { ... } like so:

The values can be accessed in two ways, dot notation and square bracket notation :

The first one is simple but, the second one is more versatile, and can accept variables as input, like so:

Arrays

Also, I studied some Array methods, they were, filter, map, sort, reduce;

All these methods use a feature that I kinda had fear, callback functions, that is passing functions as parameters ☠️. I have used something similar in C, and it looked like dark magic, but in JS it is as simple as passing a normal variable as parameter.

And the syntax with arrow functions can look a little messy in the beginning, but when you get used to it, it kinda looks pretty.

Well, these array methods that take callback functions will iterate through each array index and call the callback function with the value of this index.

I think that the .map method is the simplest to understand, it will call the function on each value as I said and return a new array with the return from all the callback function.

The map can also be called like this, with arrow function:

Output:

That's it 😵‍💫, today I wrote a lot 😅

Again, this was supposed to be posted yesterday, but I was sooo sleepy that I couldn't even think.

Also, I was thinking about trying to write these posts in the morning rather than at night, of course I'll write about what I did in the day before, but maybe I'll continue to use terms like "today I did" instead of "yesterday I did", because I think it fits better.

[regexkind]

Make-a-fish

There is a very cute site out there: http://makea.fish

It was written by @weepingwitch

If it is 11:11 AM or PM according to your machine's clock, you can visit this page and get a cute procedurally-generated fish image. Like this:

At other times, you will get a message like this:

This is charming enough that I have a friend who has a discord channel devoted entirely to people's captures of fish at 11:11. But it's also a fun code-deobfuscation puzzle. Solution below the cut--I checked, and it's ok for me to share the solution I came up with :)

If you show source for the makea.fish website:

Basically:

an image, set by default to have a pointer to a source that doesn't really exist

a script, that is one big long line of javascript.

The javascript is where we are going. Start by loading it into an editor and prettifying it up. It's like taking home a scrungly cat and giving it a wash. or something idk.

Believe it or not this is better. Also, maybe there are some low-hanging fruits already we can pick?

Like this:

Each of the strings in this array is composed of escaped characters. Escaped hex characters are useful if you need to put characters in your string that are not available on the keyboard or might be interpreted as part of the code, but here I think they're just being used to hide the actual contents of the string.

I used python to deobfuscate these since the escape sequences should be understood by python as well. And lo--not only are they all symbols that can be rendered (no backspaces or anything!) but they also look like base64 encoded strings (the =, == terminators are a giveaway).

What happens if we run these through a base64 decoder?

We see that the array actually contains base64-encoded strings. Perhaps a portion of this code is converting these strings back, so that they can be used normally?

At any rate I am going to rename the variable that this array is assigned to to "lookupTable" because that's what I think of it as.

We are making an anonymous function and immediately calling it with two arguments: lookupTable and 0xd8. 0xd8 is 216 in decimal. By renaming the variables, we get:

Confession time, I am not a person who writes lots of javascript. But it occurs to me that this looks an awful lot like we're being weird about calling functions. Instead of traditional syntax like "arrayInput.push(arrayInput.shift())" we're doing this thing that looks like dictionary access.

Which means that, according to the docs on what those two array functions are doing, we are removing the first element of the array and then putting it on the end. Over and over again. Now I could try to reason about exactly what the final state of the array is after being executed on these arguments but I don't really want to. A computer should do this for me instead. So I in fact loaded the original array definition and this function call into a JS interpreter and got:

['Z2V0SG91cnM=', 'd3JpdGVsbg==', 'PEJSPjExOjExIG1ha2UgYSBmaXNo', 'PEJSPmNvbWUgYmFjayBhdCAxMToxMQ==', 'Z2V0TWlsbGlzZWNvbmRz', 'Z2V0U2Vjb25kcw==', 'Z2V0RWxlbWVudEJ5SWQ=', 'c3Jj', 'JnQ9', 'JmY9']

This is our array state at this time. By the way, this comes out to

['getHours', 'writeln', '11:11 make a fish', 'come back at 11:11', 'getMilliseconds', 'getSeconds', 'getElementById', 'src', '&t=', '&f=']

(there are some BR tags in there but the Tumblr editor keeps eating them and I'm too lazy to fix that).

What's next? Apparently we are defining another function with the name "_0x2f72". It is called very often and with arguments that look like small numbers. It is the only place our lookupTable is directly referenced, after the last little shuffler function. So my guess is deobfuscator for the elements of the array.

It takes two arguments, one of them unused. Based on my hunch I rename the function arguments to tableIndex and unused.

One of the first things we do seems to be using the awesome power of javascript type coercion to get the input as an integer:

tableIndex=tableIndex-0x0;

Normal and ranged.

The next thing that is done seems to be assigning the return value, which may be reassigned later:

var retVal=lookupTable[tableIndex];

The next line is

if(deobfuscatorFn['MQrSgy']===undefined) {...

Again, I'm not exactly a javascript person. My guess is that "everything is an object" and therefore this value is undefined until otherwise set.

indeed, much further down we assign this key to some value:

deobfuscatorFn['MQrSgy']=!![];

I don't know enough javascript to know what !![] is. But I don't need to. I'll as a js interpreter and it tells me that this evaluates to "true". Based on this I interpret this as "run this next segment only the first time we call deobfuscatorFn, otherwise shortcircuit past". I rewrite the code accordingly.

The next block is another anonymous function executed with no arguments.

Within the try catch block we seem to be creating a function and then immediately calling it to assign a value to our local variable. The value of the object in our local variable seems to be the entire js environment? not sure? Look at it:

My guess is that this was sketchy and that's why we assign "window" in the catch block. Either way I think we can safely rename _0x2611d5 to something like "windowVar".

We then define a variable to hold what I think is all the characters used for b64 encoding. May as well relabel that too.

Next we check if 'atob' is assigned. If it isn't we assign this new function to it, one which looks like it's probably the heart of our base64 algorithm.

I admit I got lost in the weeds on this one, but I could tell that this was a function that was just doing string/array manipulation, so I felt comfortable just assigning "atob" to this function and testing it:

vindication! I guess. I think I should probably feel like a cheater, if I believed in that concept.

we next assign deobfuscatorFn['iagmNZ'] to some new unary function:

It's a function that takes an input and immediately applies our atob function to it. Then it...what...

tbh I think this just encodes things using URI component and then immediately decodes them. Moving on...

deobfuscatorFn['OKIIPg']={};

I think we're setting up an empty dictionary, and when I look at how it's used later, I think it's memoizing

Yup, basically just caching values. Cool!

We now have a defined deobfuscatorFn. I think we can tackle the remaining code fairly quickly.

First thing we do is get a Date object. This is where the time comes from when deciding whether to get the fish image.

Actually, let's apply deobfuscatorFn whenever possible. It will actually increase the readability quite a bit. Remember that this just does base64 decoding on our newly-shuffled array:

relabeling variables:

In other words, if the hours is greater than 12 (like it is in a 24 hour clock!) then subtract 12 to move it to AM/PM system.

Then, set "out" to be x hours minutes concatenated. Like right now, it's 16:36 where I am, so hours would get set to 4 and we would make x436x be the output.

Next, if the hours and minutes are both 11 (make a fish), we will overwrite this value to x6362x and print the makeafish message. Otherwise we print a request to comeback later. Finally, we lookup the fish image and we tell it to fetch this from "makea.fish/fishimg.php?s={millis}&t={out}&f={seconds}"

(there's a typo in the pictures I have above. It really is f=seconds).

Thus, by visiting makea.fish/fishimg.php?s=420&t=x6362x&f=69

we can get a fish. It appears to be random each time (I confirmed with weepingwitch and this is indeed truly random. and the seconds and millis don't do anything).

Now you can make fish whenever you want :)

[leumasme]

making cursed js features that shouldn't exist for fun: Array.down() and Array.up(). any method calls between them will apply to all elements of the array.

also works multiple levels deep

loosely inspired by vectorized functions in python

[auberylis]

PSA: if you're doing speed-aimed js programming, use array iterators

I have that logic sim project, right? And in it, i have to iterate over a bunch of objects and call their update functions in a loop as many times per second as possible. Meaning iteration must be fast. So i made a lil benchmark function with two styles of array iteration: test1 uses the for (var x = 0; x < array.length; x++) {then call item by x as index} style, test2 uses the for (var item of array) {use the item} style.

The benchmark function runs each test function twice per lap, does times laps and prints how much the test tok (haha) on average. Both functions iterate over 30000 objects and call a function for each. Results don't need deciphering...

[cssmonster]

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[necromancercoding]

Hola necro, tengo una pregunta que no sé si está por algún lado, ¿Es posible que la lanzada de dados (en fa) sea texto? No números ni imágenes, ¿un texto con o sin formato?

¡Hola anon! Usando el código de dados personalizados de Mr. D, puedes usar las clases de cada cara del dado para esconder el texto y reemplazarlo por un pseudoelemento (o, en su defecto, usar JS).

div[class^="resultado-dado-"]>strong { font-size:0; } div[class^="resultado-dado-"]>strong:before { font-size:14px; } .dado-1-res-1:before { content: 'Resultado 1 blablabla'; } .dado-1-res-2:before { content: 'Resultado 2 blablabla'; } .dado-1-res-3:before { content: 'Resultado 3 blablabla'; } .dado-1-res-4:before { content: 'Resultado 4 blablabla'; }

Lo mismo se puede conseguir con JS, como digo:

$(function(){ $('.dado-1-res-1').each(function(){$(this).text('Resultado 1 blablabla');}); $('.dado-1-res-2').each(function(){$(this).text('Resultado 2 blablabla');}); $('.dado-1-res-3').each(function(){$(this).text('Resultado 3 blablabla');}); $('.dado-1-res-4').each(function(){$(this).text('Resultado 4 blablabla');}); });

(Apunte para los más sabidos: Un loop o un .forEach a través de un array sería lo más eficiente en este caso. Uso funciones simples para no complicar la vida a los anons que no saben tanto JS).

¡Saludos!

[fretzine]

API Development

This week I have been developing my knowledge of using APIs within my web app using the javascript Fetch API. In the small app below I have used the dictionary API (which is free, link below):

Free Dictionary API

This very basic API returns a JSON with a meaning of the world and audio snippet of how to pronounce the word. I followed along to a very good tutorial on YouTube to help build this app which is here:

(43) JavaScript Project in 5 min - English Dictionary Project #HTML, #CSS and #JavaScript - YouTube

You can see the finished product below:

As you can see this is a very good example of working with a very basic API. It basically returns a JSON object which we then turn into an iterable JS object with the .json() method. You can see a snippet of the script below:

Once we have generated an object we can point to the data within its arrays and assign it to the innerText or 'src' (audio) of the website's elements.

Some further learning required to understand exactly how this works is:

Promises

Async functions

Await

Although this is basic I plan to go to Rapid API and look through the various free APIs available and build a bigger application that requires API keys, options which are included within the API calls header.

More to follow.

[tccicomputercoaching]

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[telkomuniversityputi]

Balasan Ke: get_theme_file_uri tidak berfungsi untuk skrip…

The GitHub link you shared for your theme isn’t accessible. For including JS files, try using wp_enqueue_script() in your functions.php. function my_custom_script() {wp_enqueue_script( 'registered-script', get_template_directory_uri() . '/js/my-script.js', array(), '1.0', true );}add_action( 'wp_enqueue_scripts', 'my_custom_script' ); This will properly load your JavaScript file at the bottom of…

[not-toivo]

Matt Pocock's Total TypeScript: Essentials

Some notes I made while reading this book:

Optional values in a tuple

Not only can a tuple have named values, it can have optional ones:

[name: string, year: number, info?: string]

[string, number, string?]

Dealing with an unknown

If we have obj of type unknown, and we want to get obj.prop of type string, this is how to do it correctly:

typeof obj === 'object' && obj && 'prop' in obj && typeof obj.prop === 'string'

If we refactor the expression above into a return value of a type guard, this would be its type signature:

(obj: unknown) => obj is {prop: string}

Destructuring values of union types (tuples vs. objects)

const [status, value]: ['success', User[]] | ['error', string] = await fetchData();

TS can then guess based on the type of the discriminant (the status variable) the type of the rest of the return value (the value variable), but wouldn't be able to do the same, if fetchData returned an object instead of tuple. An object type should be narrowed first, before we can destructure its value!

Dynamic keys

If we don't know, what keys the object may have during the lifetime of the program, we can have index signatures...

type DynamicKeys = { [index: string]: number; }

interface DynamicKeys { [index: string]: string; }

...or we can use Record helper type. Record type supports union types of type literals, unlike index signatures!

type DynamicKeys = Record<'name' | 'age' | 'occupation', boolean>

Read-only arrays

We can disallow array mutation by marking arrays and tuples as readonly, or using ReadonlyArray helper type:

const readOnlyGenres: readonly string[] = ["rock", "pop", "unclassifiable"];

const readOnlyGenres: ReadonlyArray<string> = ["rock", "pop", "unclassifiable"];

Read-only arrays/tuples can only be passed to functions that explicitly expect read-only arrays/tuples:

Matt's strange opinions on class methods

function printGenresReadOnly(genres: readonly string[]) { }

More helper types

When Matt talks about the difference between arrow and function methods, he mentions only the different ways they handle this, but isn't a much more important distinction the fact that arrow methods are technically class properties, so will be copied on every instance of a class?

UPD: And later he recommends using arrow functions!

This is extremely memory inefficient, right?

satisfies operator

Very useful thing I've never heard of before!

When a value isn't annotated with type, its type is inferred. When a value is annotated with type, its type is checked against the annotated type. When a value is followed with satisfies, its type is inferred (as if there were no annotation), but still checked against the constraint (as if there were an annotation).

Useful (?) type assertions

as any // turns off type checking for a particular value.

as unknown as T // cast a value to a completely unrelated type.

as const satisfies T // makes a value immutable, while checking it against a type.

Object.keys (user).forEach((key) => { console.log(user[key as keyof typeof user]); }) // by default TS infers return values of Object.keys() and for ... in as string[].

Excess properties

TS doesn't throw an error, when (1) a variable containing an object with excess properties is passed to a function, or (2) when an object with excess properties is returned by a callback. Both the variable and the return type of the callback should be annotated, if that is an issue.

Modules vs. scripts

Files with no import or export statement are treated by the compiler as scripts, executing in the global scope. The problem is, that's not how the distinction works in pure JS, so we can end up in sitiations like this...

...just because the name variable already exists elsewhere. One way to fix this mistake (which I knew about) is by adding export {}; to the end of the file, turning it into a module from TS perspective. Another way (which I found out about just now) is by adding line "moduleDetection": "force" to the config file. Cool.

Recommended configuration (link)

[john-carle123]

Top 10 JavaScript Libraries You Must Know in 2024

Hey there, fellow code enthusiasts! 👋 Can you believe we're already halfway through 2024? The JavaScript ecosystem is evolving faster than ever, and keeping up with the latest libraries can feel like trying to catch a greased pig at a county fair. But fear not! I've done the heavy lifting for you and compiled a list of the top 10 JavaScript libraries you absolutely must know this year.

Whether you're a seasoned dev or just dipping your toes into the vast ocean of JavaScript, these libraries will supercharge your productivity and make your code shine brighter than a supernova. So grab your favorite caffeinated beverage, settle into your ergonomic chair, and let's dive in!

1. ReactJS 19.0: The Reigning Champion

Oh, React.Js, how do I love thee? Let me count the ways! 😍 This library needs no introduction, but the latest version is like React on steroids. With improved concurrent rendering and a slick new API, React 19.0 is faster than ever. If you're not using React yet, what rock have you been living under?

Pro tip: Check out the new "Suspense for Data Fetching" feature. It'll change the way you handle asynchronous operations forever!

2. Vue.js 4: The Dark Horse

Vue.js has always been the approachable, easy-to-learn alternative to React. But with version 4, it's no longer playing second fiddle. The composition API is now the default, making your code more organized than Marie Kondo's sock drawer. Plus, the new "reactivity transform" feature is pure magic – it's like your components gained sentience!

3. Svelte 5: The Lightweight Contender

Svelte is the new kid on the block that's been turning heads. Version 5 introduces "runes," a game-changing approach to reactivity. It's so efficient, your bundle sizes will be smaller than my chances of ever completing a Rubik's cube. If you haven't tried Svelte yet, you're missing out on the closest thing to coding nirvana.

4. Three.js r160: Because 3D is the New 2D

Want to add some pizzazz to your web projects? Three.js is your ticket to the third dimension. The latest release includes improved WebGPU support, making your 3D graphics smoother than a freshly waxed Ferrari. Whether you're creating immersive data visualizations or just want to flex your creative muscles, Three.js has got your back.

5. D3.js v8: Data Visualization on Steroids

Speaking of data viz, D3.js is still the undisputed king of the hill. Version 8 brings improved TypeScript support and a more modular architecture. It's like the Swiss Army knife of data visualization – there's nothing it can't do. Fair warning: once you start using D3, you'll find excuses to visualize everything. Your coffee consumption over time? There's a chart for that!

6. Axios 2.0: Because Fetch is So Last Year

RESTful APIs are the backbone of modern web development, and Axios makes working with them a breeze. Version 2.0 introduces automatic request retrying and better browser support. It's like having a personal assistant for all your HTTP requests. Trust me, once you go Axios, you never go back.

7. Lodash 5.0: The Utility Belt You Didn't Know You Needed

Lodash is like that quiet kid in class who always has the right answer. It's a collection of utility functions that make working with arrays, objects, and strings a walk in the park. Version 5.0 is fully modular, letting you cherry-pick only the functions you need. Your bundle size will thank you!

8. Jest 30: Testing Made Fun (Yes, Really!)

I know, I know. Testing isn't exactly the most exciting part of development. But Jest 30 might just change your mind. With improved parallel execution and a new snapshot format, your tests will run faster than Usain Bolt on a coffee binge. Plus, the error messages are so helpful, it's like having a personal coding tutor.

9. Next.js 14: React on Autopilot

If you're using React (and let's face it, who isn't?), Next.js is like strapping a jetpack to your development process. Version 14 introduces "Turbopack," a Rust-based bundler that's faster than a cheetah on roller skates. It's so good at optimizing your app, you'll wonder if it's powered by actual magic.

10. Socket.IO 5: Real-time Has Never Been This Easy

Last but not least, we have Socket.IO. If you're building anything that requires real-time communication (chat apps, live updates, multiplayer games), Socket.IO is your new best friend. Version 5 brings improved performance and better TypeScript support. It's like telepathy for your web apps!

Wrapping Up

There you have it, folks! These 10 JavaScript libraries are your ticket to coding nirvana in 2024. Whether you're building the next big social media platform or just trying to make your portfolio site stand out, these tools will have your back.

Remember, the key to mastering these libraries isn't just knowing how to use them – it's knowing when to use them. Don't be that developer who uses a sledgehammer to crack a nut (we've all been there, no judgment).

So, what are you waiting for? Fire up that code editor, brew a fresh pot of coffee, and start exploring these amazing libraries. Your future self will thank you!

Happy coding, and may your bugs be few and your commits be many! 🚀👨‍💻👩‍💻

Would you like me to explain or elaborate on any part of this blog post?

[reactjsait]

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Component-Based Architecture: React’s component-based structure allows for reusable components, making development more efficient and maintainable. Virtual DOM: React’s virtual DOM enhances performance by updating only the changed elements, ensuring faster rendering and smoother user interactions. Rich Ecosystem: With a vast array of tools, libraries, and a strong community, React offers extensive resources for developers to enhance their applications. High Demand: As businesses increasingly adopt React for their web development needs, skilled React developers are in high demand, offering lucrative career opportunities.

Why Choose AchieversIT for React JS Classes in Bangalore? AchieversIT stands out as the premier institute for React JS classes in Bangalore due to its comprehensive curriculum, experienced instructors, and student-focused approach. Here’s what sets AchieversIT apart:

Expert Instructors: Our trainers are industry veterans with extensive experience in React JS. They provide real-world insights and practical knowledge, ensuring that students gain a deep understanding of the library. Hands-On Training: At AchieversIT, we emphasize practical learning. Our React JS classes involve numerous hands-on projects and assignments, enabling students to apply their knowledge in real-world scenarios. Updated Curriculum: The React JS curriculum at AchieversIT is constantly updated to reflect the latest industry trends and advancements. This ensures that our students are well-prepared for the current job market. Flexible Learning Options: We offer both online and offline classes to accommodate the diverse needs of our students. Whether you prefer a classroom setting or the convenience of online learning, we have options that fit your schedule. Career Support: AchieversIT provides robust career support services, including resume building, interview preparation, and job placement assistance. Our strong industry connections help students secure promising job opportunities after course completion. Course Overview: React JS Classes in Bangalore The React JS course at AchieversIT is meticulously designed to cover all essential aspects of the library, from basic concepts to advanced techniques. Here’s a brief overview of what you can expect:

Introduction to React: Understanding the fundamentals of React, including JSX, components, and the virtual DOM. Components and Props: Learning how to create and manage reusable components and pass data through props. State and Lifecycle: Mastering state management and lifecycle methods to create dynamic and interactive applications. Handling Events: Implementing event handling to create responsive user interfaces. React Router: Using React Router to build single-page applications with navigation. Redux: Introduction to Redux for state management, including actions, reducers, and the store. Hooks: Utilizing React hooks for functional components, including useState, useEffect, and custom hooks. Advanced Topics: Covering advanced topics such as context API, error boundaries, and performance optimization. Project Work: Building a comprehensive project to apply the learned concepts and techniques.

AchieversIT: Your Gateway to a Successful React JS Career Enrolling in React JS classes at AchieversIT is a step towards a successful career in front-end development. Our holistic approach ensures that you not only learn the technical skills but also develop the problem-solving and analytical abilities required to excel in the field.

With a proven track record of producing skilled professionals, AchieversIT is the ideal choice for anyone looking to master React JS in Bangalore. Join our React JS classes today and embark on a journey towards becoming a proficient React developer. AchieversIT is committed to providing quality education and empowering students to achieve their career goals.

For more information about our React JS classes in Bangalore, visit our website or contact us directly. Let AchieversIT be your partner in success as you navigate the exciting world of React JS development.

[thememakker]

Why Choose Swift Bootstrap 4 Mega Bundle for Your Projects?

The Swift Bootstrap 4 Mega Bundle is a powerful toolkit designed to meet these demands, offering a wide array of features that streamline the development process and enhance the final product. This bundle is built to cater to developers who seek both functionality and elegance in their projects, making it an essential asset for creating modern, responsive web applications.

Product Highlights of Swift Bootstrap 4 Mega Bundle

Built-in SASS

SASS is a CSS preprocessor that extends CSS with features like variables, nested rules, and mixins. The inclusion of SASS in the Swift Bootstrap 4 Mega Bundle allows developers to write more maintainable and scalable CSS. This makes it easier to manage complex stylesheets, ultimately saving time and effort.

Bootstrap 4

Bootstrap 4 is a widely used front-end framework that simplifies the development of responsive and mobile-first websites. By integrating Bootstrap 4, the Swift Bundle ensures a consistent design and a variety of pre-designed components that can be easily customized to fit the needs of any project.

JS Bundling Ready (Bundle)

JavaScript bundling is a technique that combines multiple JS files into a single file, reducing the number of HTTP requests and improving page load times. The Swift Bundle is optimized for JS bundling, making it easier for developers to manage dependencies and enhance the performance of their applications.

Material Kit Added

The Material Kit included in the Swift Bundle provides a collection of UI components based on Google’s Material Design principles. This ensures that the applications not only look professional but also offer a user-friendly experience.

Morphing Full-Screen Search

The morphing full-screen search feature provides a smooth and engaging search experience, which is particularly useful for content-heavy websites. This feature enhances user interaction and helps in quickly finding the required information.

Fully Responsive & Interactive

Responsiveness is crucial in today’s multi-device world. The Swift Bootstrap 4 Mega Bundle ensures that all components and layouts are fully responsive, providing an optimal viewing experience across a wide range of devices and screen sizes.

Expanded and Collapsed Menu

The bundle supports both expanded and collapsed menu designs, offering flexibility in creating intuitive and space-efficient navigation systems. This feature is particularly beneficial for applications with extensive menu structures.

Elegant & Clean User Interface

A clean and elegant user interface (UI) enhances user engagement and satisfaction. The Swift Bundle is designed with aesthetics in mind, ensuring that applications look polished and professional.

Multi Menu Levels

Multi-level menus are essential for complex applications requiring hierarchical navigation. The Swift Bootstrap 4 Mega Bundle supports multi-level menus, allowing developers to create comprehensive and well-organized navigation structures.

Responsive Tables

Responsive tables are designed to adjust their layout according to the screen size, ensuring that data is displayed correctly on all devices. This feature is crucial for applications that rely on data presentation and management.

Form Wizard

The form wizard guides users through complex forms step-by-step, improving the user experience and increasing form completion rates. This feature is particularly useful for applications requiring detailed user input.

iOS Type Switches

iOS-type switches provide a modern and intuitive way for users to toggle between options. This feature enhances the usability of settings and preferences within the application.

Invoice

The bundle includes templates and components for generating invoices, making it easier for developers to integrate billing and financial features into their applications.

Messenger Notifications

Real-time messenger notifications keep users informed and engaged by providing instant updates and messages. This feature is particularly useful for applications that require frequent communication.

404, 500 Error Pages

Customizable 404 and 500 error pages help maintain a consistent user experience even when errors occur. These pages provide useful information and navigation options to users, helping them find what they are looking for.

250+ Pages

With over 250 pre-designed pages, the Swift Bootstrap 4 Mega Bundle offers a comprehensive set of templates and components for various types of web applications. This extensive collection reduces the need for custom web development, saving time and resources.

Calendar Integration

Calendar integration is essential for applications that require scheduling and event management. The Swift Bundle includes robust calendar features, making it easy to implement and customize this functionality.

Detailed Documentation

Detailed documentation is provided to assist developers in utilizing the bundle’s features effectively. This resource ensures that all components are easily understood and integrated into projects, reducing development time and enhancing productivity.

Works Well in All the Latest Browsers

Compatibility with all the latest browsers ensures that applications built with the Swift Bootstrap 4 Mega Bundle perform well across different platforms, providing a consistent experience for all users.

FAQs

Q1: Do you charge for each upgrade?

No, once you buy a license, you'll get every single future release for free.

Q2: Do I need to purchase a license for each website?

Yes, you have to have an individual license for every website. You may need to buy an extended license for your web application.

Q3: What is a regular license?

A regular license can be utilized for end products that do not charge users for access or service (access is free and there will be no monthly membership fee). Single regular licenses can be utilized for a single end product, and the end product can be utilized by you or your client. If you want to sell the end product to numerous clients, you should buy a separate license for every customer. The same rule applies if you need to utilize a similar end product on numerous domains (unique setup). You can check the official description for more info on a regular license.

Q4: What is an extended license?

An extended license can be utilized for end products (web service or SAAS) that charges users for access or service (for example, a monthly subscription fee). Single extended licenses can be utilized for a single end product, and the end product can be utilized by you or your customer. If you want to sell the end product to different customers, you should buy a separate extended license for every customer. A similar guideline applies if you need to utilize the same end product on multiple domains (unique setup). For more details on extended licenses, you can check the official description.

Q5: Which license is applicable for the SAAS application?

If you are charging your customer for using your SAAS-based application, you should purchase an Extended License for each end product. If you aren't charging your client, then buy a Regular License for each end product.

[sohojware]

JavaScript Libraries You Should Know - Sohojware

JavaScript (JS) has become the backbone of interactive web development. It's the language that breathes life into those cool animations, dynamic content, and seamless user experiences you encounter online. But writing every single line of code from scratch to achieve these effects can be a daunting task. That's where JavaScript libraries come in - pre-written, reusable code blocks that act as your trusty companions in the world of web development.

Sohojware, a leading web development company, understands the importance of efficient development. This article will introduce you to some of the most popular JavaScript libraries and how they can empower your web projects.

Why Use JavaScript Libraries?

There are several compelling reasons to leverage JavaScript libraries in your development process:

Reduced Development Time: Libraries come with pre-built functionality, eliminating the need to write code from scratch. This translates to significant time savings, allowing you to focus on the core functionalities of your web application.

Improved Code Quality: JavaScript libraries are often rigorously tested and maintained by large communities of developers. This ensures high-quality code that is less prone to bugs and errors.

Enhanced Maintainability: Libraries promote code reusability, making your codebase cleaner and easier to maintain in the long run.

Cross-Browser Compatibility: JavaScript libraries are often designed to work across different web browsers, ensuring a consistent user experience.

Popular JavaScript Libraries to Consider

With a vast array of JavaScript libraries available, choosing the right ones can be overwhelming. Here's a look at some of the most popular options, categorized by their functionalities:

1. Front-End Development Libraries:

React A powerful library for building user interfaces. It's known for its component-based architecture and virtual DOM, making it efficient for creating complex and dynamic web applications. Sohojware's team of React experts can help you leverage this library to craft exceptional user experiences.

Vue.js: Another popular front-end library, Vue.js offers a balance between ease of use and flexibility. It's known for its progressive nature, allowing you to integrate it incrementally into your projects.

Angular: A comprehensive framework from Google, Angular provides a structured approach to building web applications. It enforces best practices and offers a wide range of built-in features.

2. Utility Libraries:

jQuery: This veteran library simplifies DOM manipulation, event handling, and AJAX interactions. While not the newest option, jQuery's vast adoption and plugin ecosystem make it a valuable asset for many projects.

Lodash: A utility library offering a rich collection of functions for common tasks like array manipulation, object manipulation, and functional programming. Lodash helps write cleaner and more concise code.

3. Data Visualization Libraries:

Chart.js: A lightweight library for creating various chart types like bar charts, line charts, and pie charts. It's easy to learn and integrate, making it a great choice for basic data visualization needs. Sohojware's developers can help you choose the right JavaScript library for your data visualization requirements and create impactful charts to enhance your web application.

D3.js: A powerful library for creating interactive and visually stunning data visualizations. D3.js offers a high degree of control and flexibility but comes with a steeper learning curve.

Choosing the Right JavaScript Library

The best JavaScript library for your project depends on your specific needs and preferences. Here are some factors to consider:

Project Requirements: Identify the functionalities you need in your web application. Different libraries cater to different purposes.

Team Expertise: Consider your team's familiarity with different libraries. Choosing a library your team is comfortable with can lead to faster development.

Community and Support: A larger community and extensive documentation can provide valuable assistance when encountering challenges.

FAQs:

Can I use multiple JavaScript libraries in a single project?

Yes, you can use multiple libraries in a project, as long as they don't conflict with each other. It's important to carefully manage dependencies to avoid issues.

Are JavaScript libraries essential for web development?

While not strictly essential, JavaScript libraries can significantly improve your development workflow and the quality of your web applications.

Does Sohojware offer development services using JavaScript libraries?

Absolutely! Sohojware's team of experienced developers is proficient in utilizing various JavaScript libraries to build modern and interactive web applications. Feel free to contact us to discuss your project requirements.

How can Sohojware help me choose the right JavaScript library for my project?

Sohojware's web development consultants can analyze your project goals and recommend suitable JavaScript libraries that align with your needs. Our team stays up-to-date on the latest trends and advancements in the JavaScript ecosystem, ensuring we can provide the best possible guidance for your project.

What are the benefits of working with Sohojware for my JavaScript development project?

Sohojware offers a team of highly skilled and experienced developers who are passionate about crafting exceptional web applications using cutting-edge technologies like JavaScript libraries. We take pride in our transparent communication, collaborative approach, and commitment to delivering high-quality results that meet your specific requirements. Partner with Sohojware to leverage the power of JavaScript libraries and bring your web application vision to life!

[brainydxtechnologies]

Understanding JavaScript is essential for all SDEs

Understanding JavaScript is essential for all SDEs

In the ever-evolving world of web development, JavaScript stands as a stalwart, playing a pivotal role in shaping the interactive and dynamic nature of websites. Whether you’re a seasoned developer or just dipping your toes into the world of coding, understanding JavaScript is essential. JavaScript, often abbreviated as JS, is one of the most ubiquitous and versatile programming languages in the world today. It is the backbone of web development, enabling developers to create interactive and dynamic web applications. In this blog post, we will dive into the fascinating world of JavaScript, exploring its history, features, and the many ways it is used in modern web development.

A Brief History

JavaScript was created by Brendan Eich while he was working at Netscape Communications Corporation in 1995. Initially named “Mocha” and later “LiveScript,” it was eventually renamed JavaScript as part of a strategic partnership with Sun Microsystems (now Oracle). Despite its name, JavaScript has very little to do with Java. 

It was designed as a scripting language for the web, and its initial purpose was to add interactivity to web pages. Over the years, it has evolved significantly, becoming a powerful and versatile language.

Key Features of JavaScript

Highly Versatile:

JavaScript is a versatile language that can be used for both client-side and server-side development. This means you can build entire web applications using JavaScript, from the user interface to the server logic.

Dynamic Typing:

JavaScript is dynamically typed, which means there’s no requirement to explicitly declare the data type of a variable. This flexibility allows for rapid development but requires careful handling to avoid runtime errors.

Functions as First-Class Citizens:

Functions in JavaScript are treated as first-class citizens, which means they can be assigned to variables, passed as arguments to other functions, and returned as values from other functions. This functional programming feature is essential for modern JavaScript development.

Event-Driven:

JavaScript is inherently event-driven, making it perfect for creating responsive and interactive web applications. You can listen for events like clicks, keyboard inputs, and network responses and execute code in response to these events.

Cross-Platform Compatibility: JavaScript runs in browsers on all major platforms, making it a truly cross-platform language. Additionally, JavaScript can be used in mobile app development through frameworks like React Native and Flutter.

Building Blocks of JavaScript:

JavaScript consists of several fundamental components:

Variables and Data Types:

Learn how to declare variables and work with data types like numbers, strings, and arrays.

Control Structures:

Understand conditional statements (if, else) and loops (for, while) to control the flow of your code.

Functions:

Functions are blocks of reusable code. Mastering functions is key to organizing your code efficiently.

Objects and Classes:

Explore the concept of objects and classes, which allow you to create complex data structures and blueprints for objects.

DOM Manipulation:

Learn how to manipulate the Document Object Model (DOM) to interact with web pages dynamically.

 The JavaScript Ecosystem

JavaScript’s ecosystem has grown immensely over the years, with a multitude of libraries and frameworks that simplify and accelerate development. Some of the most popular include:

React:

Developed by Facebook, React is a library for building user interfaces. It allows developers to create reusable UI components, making it easier to manage complex web applications.

Angular:

Developed by Google, Angular is a comprehensive framework that offers a wide range of tools for building web and mobile applications. It emphasizes modularity and dependency injection.

Vue.js:

Vue.js is a progressive JavaScript framework that is known for its simplicity and ease of integration with existing projects. It’s an excellent choice for developers who want a lightweight framework.

Node.js:

While not a front-end framework, Node.js is a runtime that allows you to run JavaScript on the server side. It has gained popularity for building scalable and efficient server applications.

JavaScript has come a long way since its inception in the mid-90s. Today, it powers the majority of websites and web applications and has expanded its reach to mobile and server-side development. Its versatility, dynamic nature, and vibrant ecosystem of libraries and frameworks make it a compelling choice for developers worldwide. 

As technology continues to evolve, JavaScript will likely remain a crucial tool in the world of web development. So, whether you’re a seasoned developer or just starting your programming journey, JavaScript is a language worth mastering to unlock a world of creative possibilities in the digital realm.

[supportflysblog]

How to Fix "WordPress JQuery is Not Defined" Error?

Today, approximately 80% of websites run on jQuery, if your wordpress website is one of them, you might encounter the “Uncaught ReferenceError: jQuery is not defined” error at some point. This error message indicates that your website can’t call a function from the jQuery JavaScript library. This may cause one or multiple website elements to stop running. Luckily there are multiple methods to fix this common issue. 

In this comprehensive tutorial, we will go through the methods to do so for WordPress users.

What Is the “jQuery Is Not Defined” Error in Wordpress?

“jQuery is not defined” error in wordpress is a common error that occurs when a website calls for a jQuery function before the library loads properly but the jQuery.com JavaScript library is unavailable or isn’t functioning correctly. It is caused possibly due to conflicting plugins, a corrupted jQuery file, a blocked CDN, or your JavaScript code loads incorrectly.”

It can crash your wordpress website because of corrupted WordPress’s plugins or jQuery files, hosting issues, or CDN problems. Simply, your website can’t communicate with its library because of broken or conflicting code.

Key Reasons of the “jQuery Is Not Defined Error”

This error in WordPress is pretty common. Here are some key reasons of this issue:

Corrupted WP Themes or Plugins

Errors with JavaScript or jQuery file

JavaScript Running Incorrectly

Blocked CDN-hosted jQuery

Poor Performing Host

What are Negative Impacts of this Error on Website?

A "jQuery is Not Defined" error in WordPress can impose some negative effects on your website's functionality and user experience:

Broken Functionality of Site

Affects User Experience

Increased Bounce Rate

Negative Impact on SEO 

Loss of Revenue

Loss of Brand Value

Damage Site Authority 

How To Fix the “Uncaught Reference Error: jQuery Is Not Defined” WordPress Error

Before starting fixing the error, create a site backup if something goes wrong. Setting automated backups is recommended. Beyond this, we also recommend running any changes you make to your site through a staging environment. Don’t make any changes to your live website while troubleshooting. Finally, ensure you have access to an FTP or File Transfer Protocol client. This program helps you edit code behind the scenes, and you can get login details from your host.

Remember, if you don’t have the time to fix this error yourself or if you should just prefer expert support, you can skip ahead and contact Supportfly.

1. Check jQuery is Included

Firstly, check that your website code includes a jQuery library. WordPress typically installs this for you. Right-click anywhere on your web page and select “View Page Source” to open the source code.

Now find the code that makes up your page. From here, press CTRL+F on Windows or CMD+F keys on Mac to open a search bar.

Search for “jquery.min.js.” The phrase should appear in the code if your website has a library installed. If it doesn’t appear, check the Network tab of your browser’s dev tools to see if you notice any jQuery takes being loaded. In your root folder, typically in “public_html,” look for a folder called “wp-includes”.

Open “wp-includes” and then open the file named “script-loader.php.” Now in the source code, search for a line that starts with “wp_enqueue_script.” and after the word “script” in this phrase paste the below given bold lines-

wp_enqueue_script( ‘tt-mobile-menu’, get_template_directory_uri() .

‘/js/mobile-menu.js’, array(‘jquery’), ‘1.0’, true );

In WordPress you can do this all using Plugin. You can add code to your site using this plugin without editing text files.

Go back to your website and see if the problem is resolved.

2. Check jQuery is loading correctly

Now, we need to check, jQuery file is loading as expected. To start, right-click anywhere on your web page and select “View Page Source.” and search for queries in the code that start with “<script src=” and include “jquery” in the same lines.

If you see lines in the code matching this description, it’s likely loading correctly. Now move to the next step if you can’t see any matches.

3. Add a snippet to wp-config.php File

Still, if the above given ways don't work, you need to edit your website’s configurations. Look for the wp-config.php file in your root folder.

Right-click on the webpage anywhere and download the file to your preferred drive so you have a manual backup, and open the file in your root folder to begin editing.

Now, find the following line:

/* That’s all, stop editing! Happy blogging. */

Paste the following above that line:

/** Absolute path to the WordPress directory. */

if ( !defined(‘ABSPATH’) )

define(‘ABSPATH’, dirname(__FILE__) . ‘/’);

define(‘CONCATENATE_SCRIPTS’, false);

You just defined the ABSPATH, which will help your website to recognize that jQuery is cavailable. Save the file and try to reload your website.

4. Set up Google-hosted jQuery with an alternate fallback

A CDN, or Content Delivery Network, might be to blame for your jQuery woes. This is a series of networked servers that speed up WordPress but can sometimes cause functionality issues if it goes down unexpectedly. So, it’s worth setting up a Google-based jQuery you can fall back on now and in the future. To do this, you add the following code:

// Fall back to a local copy of jQuery if the CDN fails

<script>

window.jQuery||document.write(‘<script src=”mysite.com/wp-content/themes/my_theme/js/query.min.js”><\script>’))

</script>

Save, and check your site once again.

5. Manually add the jQuery Library to header.php

If step four didn’t resolve the error, try adding the jQuery library manually. Head to Google Hosted Libraries. Here, copy the code snippet for the latest version of jQuery from the link above, for example, the snippet listed under “3.x snippet.”:

<script src=”https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js”></script>

Now, find the marked folder “wp-content” in your root folder “public_html”, then go to the “Themes”,  then the folder marked with the name of the theme you’re using.

In this theme folder, you should see the header.php file. Right-click and save this to your usual drive, and open the version in FTP. Then, paste the snippet below the tag marked, save, and try to re-access your site. 

Conclusion

In conclusion, jQuery is one of the most common errors occurring in wordpress sites. In this tutorial we have explained about what “jQuery is not defined” is, some of the key reasons for this error and some methods of fixing this error that will definitely help you to fix this error. Nevertheless you are not able to resolve the "jQuery is Not Defined" error in WordPress. It can extend the time your visitors have to wait for your WordPress page to load. Fortunately, with some code editing, fixing the WordPress admin jQuery error is simpler than you might expect.

Muddling around with code may be  a bit daunting, especially if you need to make changes to your theme’s functions.php file. So if you’re unsure about making potentially harmful changes to your site, it’s best to contact a wordpress expert. 

Contact Supportfly and hire an expert team for WordPress Management services to boost your website performance. We provide Premier Wordpress Management services to run your website on WordPress successfully.