JavaScript Array Logic Questions
Jul 10, 2025 · 2 min read · Here are some JavaScript array logic questions commonly asked in interviews. 1. Find the Duplicate Numbers in an Array const arr = [1, 2, 3, 2, 4, 5, 1]; const duplicates = arr.filter((item, index) => arr.indexOf(item) !== index); console.log([...ne...
Join discussionArrays in JavaScript
Oct 12, 2024 · 4 min read · An array is a special type of object used to store multiple values in a single variable. Arrays are ordered collections, and you can store different types of data (numbers, strings, objects, etc.) in a single array. Empty Array You can create an emp...
Join discussionApply transform over each element without array.map()
Aug 29, 2023 · 1 min read · For this type of transformation, we must be clear about the JS array and its methods and arguments. We also need a clear idea about the JS function. Suppose we have an integer array called numbers and some mapping functions such as plusone(which will...
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Using Loops With Arrays in JavaScript
Jun 19, 2023 · 1 min read · let num = [3, 54, 1, 2, 4] // for(let i=0; i<num.length;i++){// console.log(num[i])// } // For each loopnum.forEach((element)=>{console.log(element*element)}) // Array.from => Use to create an array from any other object// Array.from ("Sage")let name...
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Array in JavaScript
Jan 15, 2023 · 3 min read · Array: An array is a special variable, which can hold more than one value: An array can hold many values under a single name, and you can access the values by referring to an index number. you can create array with help of this brackets [] . and y...
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JavaScript Array and its Methods
Aug 28, 2022 · 3 min read · In this article I will explain what is an array and why to use an array and what are some of its methods- An array is a special variable, which can hold more than one value- const fruits = ["Apple", "Orange", "Banana"]; This is an array of cars whi...
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