JavaScript 2D Array (Two-Dimensional Array in JavaScript) is a data structure that is used to store elements in a grid-like fashion using rows and columns. It can be visualized as an array of arrays, where each inner array represents a row. 2D arrays are useful in scenarios like representing matrices, tables, or grids in a…
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Identity Card is an official document used to verify a person’s identity. It contains details like name, Address, Date of Birth, Photo, etc. Any Government or Private workplace, school or organization can issue identity cards. In this article, we will learn how to design an Identity Card with HTML and CSS. We will see a…
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Given an array and index, the task is to insert a particular item at a given index. There are multiple ways to insert an item into an array at a specific index in JavaScript. 1. Using splice() Method The splice() method is used to modify the original array. This method can be used to insert,…
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The indexOf() method returns the first index at which the element can be found in the array, or -1 if the element is not present. This method is case sensitive for string element. Syntax Parameters Parameters Descriptions searchElement The element whose index is to be find. fromIndex (Optional) Its default value is 0, which means…
JavaScript Array Methods provide powerful built-in functions to perform operations on array. These methods simplifies the operations like – adding, removing, searching, sorting, filtering, and other operations. Here is an example that demonstrates the basic array operations. Below are the list of all JavaScript array methods with their brief description. Method/Property Description JavaScript Array() constructor…
Array in JavaScript is a collection of elements, where the array elements can be of any type like – numbers, strings, objects, or even other arrays. The index of JavaScript Arrays starts from zero, which means the first element is accessed with an index of 0. Create an Array There are different ways to create…