React – Interview Questions and Answers
Question: What is React? Answer: React is an open-source JavaScript library for building user interfaces. React can be used as a base in the development […]
interview questions and answers
Javascript Interview Questions and Answers
Read More Here Front-end Interview Prep Guide. What is Closure in Javascript? Closure is a feature in javascript where inner function has access to outer […]
DOM Tree Traversal through Breadth-first Search (BFS)
First We will learn about What is BFS? Breadth-first search (BFS) is an algorithm for traversing tree structures. The algorithm starts at the root node and […]
DOM Tree Traversal through Depth-first Search (DFS)
First We will learn about What is DFS? Depth–first search (DFS) is an algorithm for traversing tree structures. The algorithm starts at the root node and […]
Coding Challenge: Given an unsorted array A of size N of non-negative integers, find a continuous sub-array which adds to a given number S.
Input: [1, 2, 4, 6, 7, 5], 12 Output: [7,5] Logic Implementation: We can keep adding numbers from array. We can check conditions, if it […]
Coding Challenge – Find the longest non-repeating substring from given string
To solve this problem we have to set the pointer at the starting index and keep adding characters until we find the repeating character. Once […]
Coding Challenge – One Edit Boolean. Write a function to return if two words are exactly “one edit” away.
Write a function to return if two words are exactly “one edit” away. where an edit can be inserting one character anywhere in the word […]
Coding Challenge – Three Sum Target. Find a triplet that sum to a given target value
Common Interview Coding question and answer. Coding challenge is very frequent in big tech companies interview such as Amazon, Facebook or Google. Take a look […]