#top15 interview questions

[skywebtechnologies]

Web Development Interview Questions?

   In such a situation, it is critical to be ready for interviews, especially when entering the web development field. Irrespective of your plan of working with a leading organization such as SkyWeb Design Technologies, an organization that deals in web and mobile applications, or with any organization of your preference, it is important to learn the basics.

1. What is HTML, what is it used for?

 Answer:  HTML stands for Hyper Text Markup Language it’s most commonly used markup language in the creation of Web documents or anything related to the Web environment. It determines the layout of the material posted on the World Wide Web and includes such components as headings, paragraphs, hyperlinks, images, and others. 

 2. What makes HTML5 different from the prior version of HTML? 

 Answer:   HTML5 is the version of HTML that is currently in use. It adds new elements and attributes and enhanced support for multimedia that are <article>, <section>, <header>, <footer>, <audio>, <video> and new APIs such as Canvas, Web Storage and Geolocation. 

 3. Here are some of the frequently used HTML tags and what they are used for: 

 Answer: 

  <p>: Defines a paragraph. 

 <h1> to <h6>: 

 <a>: Defines a hyperlink. 

 <img>: Embeds an image. 

 <ul> and <ol>: is unordered list, and ordered list. 

 <div>:  division. So it defines a division or section. 

 <span>: Sets a block of text, mainly used for applying a style on. 

 4. What is CSS and why should one bother with it? 

 Answer:   HTML is used to create a structure of a web page while CSS (Cascading Style Sheets) is used for appears of web pLAST EDITED: pages. It enables you to use aspects like colors font, space and position to your html elements which in turn creates aesthetically pleasing and more functional website to the users. 

 5. Please also provide me with a definition of what the box model in CSS .

 Answer:   The CSS box model describes the rectangular boxes generated for elements in the document tree and consists of:The CSS box model describes the rectangular boxes generated for elements in the document tree and consists of: 

 Content: The inner content area referred to as Knowledge Creation is: 

 Padding: Margin between the stuff and its visual frame. 

 Border: These are the line on the right and at the bottom of the padding and content. 

 Margin: (h) Space referring to the area beyond the border surrounding an element and other elements.

6. JavaScript is a programming language and web development tool, but how is it defined and what does it do? 

     Answer: JavaScript is also a language used in the designing of web sites to provide flexibility and impressive features on any web page. It lets you to work with HTML and CSS, manage events, verify data in forms, use animations, and work with servers. 

 7. What are variables in JavaScript and how can one declare them? 

   Answer:   In JavaScript, variables refer to the means of storing data values. You can declare them using the var, let, or const keywords:You can declare them using the var, let, or const keywords: 

 javascript 

 var name = "ram"; 

 let age = 25; 

 const isStudent = true;

8. What is the difference between let, const, and var?

 Answer: 

 var: Any variable declared in a function block is either function-scoped or        globally-scoped which even can be redeclared and again updated. 

 let: Local, write-only, specifically they allow updating the variable but not declaring it in the same block. 

 const: declared only in block can’t be updated, or redeclared after the declaration. 

 9. What is an array; Explain how you can define an array in JavaScript? 

 Answer:    An array can be defined as a united variable for storing more than one value. We can create an array using square brackets []:

  javascript 

 let fruits = [‘apple’, ‘banana’,’ cherries’]; 

 10. What is a function and how does one describe or create one using JavaScript? 

 Answer:  Function is a set of statements and instruction used to do a certain job or achieve a specific goal. we can define a function using the function keyword:

 javascript 

 function greet(name) { 

 return ‘Hello, ‘ + name; 

 } 

 11. What is the event handling of JavaScript? 

 Answer:   Javascript as the name suggests is an event driven language; this means that functions can be written that will take actions based on events such as a click, key press or even mouse movements. we can handle events by attaching event listeners to elements:

 javascript  

 document. getElementById("myButton"). addEventListener("click", function() { 

 alert("Button clicked!"); 

 }); 

 12. What is the Document Object Model (DOM)?

 Answer:     DOM is a programming interface for the web documents. It depicts a document as a tree structure of nodes; this assist in managing the content and structures of the web pages by applying JavaScript.

13. How do you select an element by its ID in JavaScript?

Answer:

   I can select an element by its ID using the getElementById method:

javascript

let element = document.getElementById("myElement");

14. What is responsive web design, and why is it important?

Answer:

    Responsive web design ensures that web pages look good and function well on devices of various screen sizes and resolutions. It is important because it improves user experience and accessibility, and it is favored by search engines.

15. What are some basic steps to create a responsive web design?

Answer:

     Use flexible grid layouts: Utilize relative units like percentages instead of fixed units like pixels.

Media queries: Apply different styles based on screen size, orientation, and other characteristics.

Flexible images: Ensure images scale appropriately within their containers.

Viewport meta tag: Set the viewport to control layout on mobile browsers.

html

<meta name="viewport" content="width=device-width, initial-scale=1.0">

    These questions and answers demystify basic facts which a fresher that wants to join the web development team should know. 

Thanks for visit us……For more Information to visit our website: skyweb design Technologies.

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CodeIgniter Interview Questions

CodeIgniter 3.1.11 is the current version of the framework, intended for use with PHP 5.6+. There have been a number of refinements since version 2, notably with the database, session handling, and encryption. The development of this version is ongoing.

CodeIgniter Interview Questions for beginners and professionals with a list of top frequently asked CodeIgniter interview questions and answers with solid examples. 

How to check the version of the CodeIgniter framework? ... 6) Explain helpers in CodeIgniter and how to load the helper file? ... CodeIgniter is easy to use an open-source MVC based framework for PHP.