Junior Frontend Developer

Junior Frontend Developer Interview Questions and Answers for Freshers

Updated 7 Jul 2025
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3d ago

Q. Can you explain the difference between HTML, CSS, and JavaScript?

Ans.

HTML structures content, CSS styles it, and JavaScript adds interactivity to web pages.

  • HTML (HyperText Markup Language) is used to create the structure of web pages. Example: <h1>Title</h1>

  • CSS (Cascading Style Sheets) is used for styling HTML elements. Example: body { background-color: blue; }

  • JavaScript is a programming language that enables interactivity. Example: document.getElementById('myButton').onclick = function() { alert('Hello!'); };

Asked in Ideamagix

1d ago

Q. How do you connect HTML and CSS files together?

Ans.

HTML and CSS files are connected by linking the CSS file to the HTML file using the <link> tag in the <head> section of the HTML file.

  • Use the <link> tag in the <head> section of the HTML file to link the CSS file.

  • Specify the path to the CSS file in the href attribute of the <link> tag.

  • Make sure the CSS file is saved with a .css extension.

  • For example: <link rel='stylesheet' type='text/css' href='styles.css'>

5d ago

Q. How do you approach responsive web design?

Ans.

I prioritize flexible layouts, media queries, and mobile-first design to ensure a seamless user experience across devices.

  • Use fluid grids: Implement a grid system that uses percentages instead of fixed units (e.g., Bootstrap or CSS Grid).

  • Media queries: Apply CSS rules based on device characteristics, such as screen width (e.g., @media screen and (max-width: 600px) {}).

  • Mobile-first approach: Start designing for the smallest screens first and progressively enhance for larger de...read more

Asked in Ideamagix

6d ago

Q. What are some HTML tags?

Ans.

HTML tags are used to structure content on a webpage.

  • Some common HTML tags include <div>, <p>, <a>, <img>, <h1>, <ul>, <li>, <table>, <tr>, <td>

  • Tags are enclosed in angle brackets <> and usually come in pairs (opening and closing tags)

  • Tags can have attributes like id, class, src, href, etc. to provide additional information

Are these interview questions helpful?

Asked in Zithara.AI

3d ago

Q. Implement a debounce function that limits the rate at which a function can fire. Given a function and a delay, return a new debounced version of that function that will postpone its execution until after the de...

read more
Ans.

Debounce search limits the rate at which a function is executed, improving performance in search input scenarios.

  • Debouncing prevents multiple rapid calls to a function, like a search API, when a user types quickly.

  • Example: If a user types 'hello', debounce can wait 300ms after the last keystroke before sending a request.

  • This reduces server load and improves user experience by avoiding unnecessary searches.

  • Commonly implemented using JavaScript's setTimeout and clearTimeout fun...read more

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