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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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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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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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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The _.compact() method is used to create a new array by removing all falsy values from the given array. In JavaScript, the falsy values are – false, null, 0, “” (empty string), undefined, and NaN. Syntax Parameters Return Value It returns a new array after removing all falsy values from the original array. It preserves…
The _.chunk() method is used to split an array into smaller arrays of specified size. This method divides array into multiple smaller arrays (chunks). If the original array cannot be divided evenly, the last chunk will contain the remaining elements. Syntax Parameters Return Value The method returns a new array that contains multiple arrays (chunks),…
The Math.tan() method in JavaScript is used to compute the tangent of a given number. The tangent function is one of the most fundamental trigonometric functions, which calculates the ratio of the opposite side to the adjacent side of a right triangle. In the context of the unit circle, it is the ratio of the…
The Math.sqrt() method in JavaScript is used to calculate the square root of a non-negative number. Syntax Parameters Return Value Example 1: Basic example to use Math.sqrt() to get the square root of a number. Example 2: Square root of Negative Input In this case, the argument is negative, so Math.sqrt() returns NaN because the…
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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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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