Basic and most common JavaScript interview questions and answers. Question 1: What is closure in JavaScript? Answer: A closure is a funciton and has access to variables that are declared and defined in the parent function scope even after the outer function has returned. Question 2: What is the use of window objects in JavaScript? Read More…
Category: JavaScript
JavaScript Tutorials
Python zip two lists | Example code
Using the zip() method you can merge the two lists in Python. The zip() takes a variable number of arguments. zip(one, two, three) will work, and so on for as many arguments as you wish to pass in. Note: in python 3.0 zip returns a zip object. You can get a list out of it Read More…
5 React projects you should try in 2021 | Infographic
5 React projects you should try in 2021! 5 React projects Realtime Chat App / Examples:- Slack, Messenger, Discord, Crisp Chat Social Media App / Examples:- Facebook, Twitter, Instagram E-Commerce App / Examples:- Shopify, Etsy, Dev.to Storefront Video Sharing App / Examples:-YouTube, TikTok, Snapchat Blogging/Portfolio App/ Examples:- Medium, Dev.to, HashNode RohitDegree in Computer Science and Read More…
Smallest positive integer not in array JavaScript | Example code
How to Find the smallest positive integer, not in given an array of numbers? For example, given A = [1, 3, 6, 4, 1, 2], the function should return 5. Given A = [1, 2, 3], the function should return 4. Given A = [−1, −3], the function should return 1. Example and Algorithm Smallest Read More…
JavaScript Remove specific element from Array | Example code
Find the index of the array element you want to remove using indexOf, and then remove that index (specific value/element) with a splicing method (splice()) in JavaScript. JavaScript Remove specific element from Array Example HTML example code. Note: The splice() method changes the contents of an array by removing existing elements and/or adding new elements. Read More…
JavaScript removes the first element from Array | Example code
Ues Array shift() method to remove the first item of an array in JavaScript. This method returns the removed element and changes the length of the array. Remove the first Item of the array in JavaScript HTML example code. This should remove the first element, and then you can return the remaining: If you have Read More…
JavaScript removes the last element from an Array | Example code
Use the JavaScript Array pop() method to remove the last element of an array. This method removes the last element of an array and returns the element it removes. Note: Pop() method will change the length of the array in JS. Remove the last item from an array in JavaScript HTML example code. When you Read More…
Remove first n elements from Array JavaScript | Example code
There are two methods in JavaScript Remove the first n elements from Array. If you want only the first element to remove then use the shift() method or if want n number of elements then you have to use the splice() method. shift() method: Removes the first element from an array and returns that element. Read More…
Remove strings from an Array in JavaScript | Example code
You can use the typeof() and filter() method to Remove strings from an Array in JavaScript. Example Remove Strings, Keep Numbers In Array With JavaScript HTML example code – Using ES6 Arrow Function Output: Without Arrow Function Using Simple Loops (for-loop) Source: stackoverflow.com/ Do comment if you have any doubts and suggestions on this JS Read More…
JavaScript Remove numbers from Array | Example code
There are many ways to remove an element from the JS array but if want to remove only a number in Array then you have to typeof and filter() methods. Write a function to remove numbers from an Array javaScript HTML example code. Output: Do comment if you have any doubts and suggestions on this Read More…