Part 1/10:

Top 20 Frontend Developer Interview Questions

In the evolving field of web development, frontend developers are in high demand. Preparation is key when it comes to securing a job, and understanding common interview questions can significantly enhance a candidate's confidence. This article summarizes the top 20 frontend developer interview questions, focusing on essential skills in JavaScript, React, HTML, and CSS.

Removing Duplicate Values

Question 1: How would you remove duplicate values from an array in JavaScript?

To achieve this, you can use the Set object along with the spread operator. By transforming the array into a Set, you effectively filter out duplicates, and then convert it back into an array. For instance:


const uniqueArray = [...new Set(array)];