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Tag: JavaScript-Questions

How to Compare Arrays in JavaScript?

Posted on March 12, 2025March 12, 2025 By Jyoti No Comments on How to Compare Arrays in JavaScript?

Given two or more arrays, the task is to compare arrays in JavaScript. It is useful while dealing with data structures. The arrays are objects in JavaScript, comparing them directly using the equality operators (== or ===) checks for reference equality, not value equality. This means, two arrays with identical elements may not be considered…

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JavaScript, Web Technologies

How to Convert Set to an Array in JavaScript?

Posted on March 12, 2025March 12, 2025 By Jyoti No Comments on How to Convert Set to an Array in JavaScript?

The Set object is used to store unique values of any type. This article covers all approaches to convert set to an array in JavaScript. 1. Using Spread Operator (…) The spread operator (…) is the most concise and modern way to convert a Set into an Array. It allows you to spread the elements…

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JavaScript, Web Technologies

Add an Element at Specific Position in JavaScript

Posted on March 12, 2025March 12, 2025 By Jyoti No Comments on Add an Element at Specific Position in JavaScript

Given an array, the task is to insert an element at a specific position in an array in JavaScript. There are multiple approaches to add an element at a specific position in JavaScript. 1. Using splice() Method The splice() method is used to insert an element at a specific position in an array. This method…

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JavaScript, Web Technologies

Add an Element to the End of an Array in JavaScript

Posted on March 12, 2025March 12, 2025 By Jyoti No Comments on Add an Element to the End of an Array in JavaScript

Given an Array, the task is to add an element to the end of an array in JavaScript. There are multiple ways to add an element to the end of an array in JavaScript. These are – 1. Using push() Method The push() method is a very basic method to add an element to the…

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JavaScript, Web Technologies

Remove the Last Element of an Array in JavaScript

Posted on March 11, 2025March 11, 2025 By Jyoti No Comments on Remove the Last Element of an Array in JavaScript

Given an array with elements, the task is to remove the last element of an array in JavaScript. 1. Using pop() Method The pop() method is a basic and most used approach to remove the last element from an array. This method modifies the original array and returns the removed element. Example Features 2. Using…

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JavaScript, Web Technologies

Add an Element to the Beginning of an Array in JavaScript

Posted on March 6, 2025March 6, 2025 By Admin No Comments on Add an Element to the Beginning of an Array in JavaScript

There are various methods to add an element to the beginning of an array in JavaScript. Each method has its unique benefits, drawbacks, and use cases. This article will discuss all possible methods to prepend an element to an array, including their syntax, examples, and applicable use cases. 1. Using the unshift() Method The unshift()…

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JavaScript, Web Technologies

How to Remove Item from an Array by Value in JavaScript?

Posted on January 16, 2025January 16, 2025 By Admin No Comments on How to Remove Item from an Array by Value in JavaScript?

Given an array, the task is to remove an item from an array by value in JavaScript. While arrays in JavaScript provide methods to remove items by index, removing by value requires slightly more effort. This article will cover all the ways to remove an item from an array by value, explaining its syntax, pros,…

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JavaScript, Web Technologies

How to Get the Difference Between Two Arrays in JavaScript?

Posted on January 16, 2025January 16, 2025 By Admin No Comments on How to Get the Difference Between Two Arrays in JavaScript?

Given two arrays, the task is to find the difference between two arrays in JavaScript. The difference between two arrays means the elements that are present in one array but not in the other. There are several methods to calculate these differences. 1. Using filter() Method The filter() method is one of the most efficient…

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JavaScript, Web Technologies

Difference Between for…in and for…of Statements in JavaScript

Posted on January 16, 2025January 16, 2025 By Admin No Comments on Difference Between for…in and for…of Statements in JavaScript

JavaScript provides multiple ways to iterate over objects and arrays, with for…in and for…of being two popular loop constructs. In this article, we will explore the differences between for…in and for…of, covering their syntax, functionality, and practical applications. What is for…in? The for…in loop iterates over the enumerable property keys of an object, including array…

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JavaScript, Web Technologies

How to Find If an Array Contains a Specific String in JavaScript/jQuery?

Posted on January 16, 2025January 16, 2025 By Admin No Comments on How to Find If an Array Contains a Specific String in JavaScript/jQuery?

Given an Array, the task is to check whether an array contains a specific string in JavaScript and jQuery. 1. Using Array includes() Method The includes() method is one of the simplest ways to check if an array contains a specific string. It is designed to test for the presence of an element in an…

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JavaScript, Web Technologies

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