javascript-array

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How to merge two arrays and remove duplicate items in JavaScript ?

Last Updated: 07 December 2023

In this article, we will see how to merge two arrays and remove duplicate items from the merged array in JavaScript. While working with the ...read more

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Check an array of strings contains a substring in JavaScript

Last Updated: 13 December 2023

The string is the combination of the characters and a substring is the subset of a string. We will be given a substring and a string and we ...read more

How to clone an array in JavaScript ?

Last Updated: 08 December 2023

In JavaScript, cloning an array means creating a new array with the same elements as the original array. Cloning an array in JavaScript is u ...read more

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Different ways to delete an item from an array using JavaScript

Last Updated: 28 November 2023

In Javascript, we do not have any array.remove() method for deleting the element. we will have an array and we need to delete a given item f...read more

How to convert two-dimensional array into an object in JavaScript ?

Last Updated: 23 June 2023

In this article, we will learn how to convert a two-dimensional array to an object. A two-dimensional array can have any number of rows and ...read more

How to remove n elements from the end of a given array in JavaScript ?

Last Updated: 15 December 2023

In this article, we will learn how to remove the last n elements from the end of the given array in JavaScript. We can remove n elements fro ...read more

How to splice an array without mutating the original Array?

Last Updated: 10 July 2023

In this article, we will be extracting the range of elements from an array without mutating it. Here, mutation means the changing of the ori ...read more

How to get the same value from another array and assign to object of arrays ?

Last Updated: 10 July 2023

In this article, we will learn how to get the same value from another array and assign it to an object of arrays. To get the same value from ...read more

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How to truncate an array in JavaScript ?

Last Updated: 09 January 2024

In JavaScript, there are two ways of truncating an array. One of them is using length property and the other one is using splice() method. I ...read more

How to print object by id in an array of objects in JavaScript ?

Last Updated: 03 January 2024

In this article, we will learn how to print object by id in an array of objects in JavaScript. We have an array of objects and in every obje ...read more

Find all the combinations of the array values in JavaScript

Last Updated: 11 July 2023

The task is to get the Cartesian product of the arrays (Finding all combinations after concatenating them). Here, 2 approaches are discussed ...read more

Remove the last Item From an Array in JavaScript

Last Updated: 19 January 2024

To Remove the last item from an array in JavaScript, we have multiple approaches.Methods to Remove the Last Element from an Array:Table of C ...read more

JavaScript Array keys() Method

Last Updated: 18 May 2023

The Javascript array.keys() method is used to return a new array iterator which contains the keys for each index in the given input array. S ...read more

JavaScript Array includes() Method

Last Updated: 05 March 2024

JavaScript Array includes() method that checks if an array contains a specific element. It returns true if the element is found, and false o ...read more

JavaScript Array map() Method

Last Updated: 18 May 2023

JavaScript Array map() Method method creates a new array with the results of a called function for every array element. This function calls ...read more

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