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Home / Interview Subjects / Web Developer
WithoutBook LIVE Mock Interviews Web Developer Related interview subjects: 20

Interview Questions and Answers

Know the top Web Developer interview questions and answers for freshers and experienced candidates to prepare for job interviews.

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The Best LIVE Mock Interview - You should go through before interview

Know the top Web Developer interview questions and answers for freshers and experienced candidates to prepare for job interviews.

Interview Questions and Answers

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Freshers / Beginner level questions & answers

Ques 1

Explain the box model in CSS.

The box model consists of content, padding, border, and margin. It defines the spacing and dimensions of an element.

Example:

div {
  width: 200px;
  padding: 20px;
  border: 2px solid black;
  margin: 10px;
}
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Ques 3

Explain the purpose of the 'box-sizing' property in CSS.

The 'box-sizing' property defines how the width and height of an element are calculated, including the padding and border, or excluding them.

Example:

div {
  box-sizing: border-box;
}
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Ques 4

What is the purpose of the 'cookie' in web development?

Cookies are small pieces of data stored on the client's machine, used to store user information and maintain state between HTTP requests.

Example:

document.cookie = 'username=John; expires=Thu, 18 Dec 2024 12:00:00 UTC; path=/';
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Ques 8

Explain the difference between 'localStorage' and 'sessionStorage'.

'localStorage' persists even when the browser is closed and reopened, while 'sessionStorage' data is only available for the duration of the page session.
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Ques 10

What is the role of the 'meta' tag with the 'charset' attribute in HTML?

The 'meta' tag with the 'charset' attribute specifies the character encoding for the HTML document, ensuring proper text rendering.

Example:

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Ques 11

What is the 'event.preventDefault()' method in JavaScript used for?

'event.preventDefault()' is used to prevent the default behavior associated with an event, such as preventing a form submission or a link from navigating.

Example:

document.getElementById('myForm').addEventListener('submit', function(event) {
  event.preventDefault();
  // additional handling code
});
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