JavaScript Array from() Method Last Updated : 15 Jul, 2024 Comments Improve Suggest changes Like Article Like Report The JavaScript Array from() method returns an Array object from any object with a length property or an iterable object. Syntax : Array.from(object, mapFunction, thisValue)Parameters:object: This Parameter is required to specify the object to convert to an array.mapFunction: This Parameter specifies the map function to call on each item of the array.element: It specifies the current element.currentIndex: This Parameter specifies the array index of the current element.thisValue: This Parameter specifies the value to use as this when executing the mapFunction.Return Value: It returns an array object or instance of an arrray. Example 1: In this example, we will be using Array from() method to create an array from the string value. JavaScript // Creating array from input string let myArr = Array.from( "GeeksForGeeks"); // Display output console.log(myArr); Output[ 'G', 'e', 'e', 'k', 's', 'F', 'o', 'r', 'G', 'e', 'e', 'k', 's' ]Example 2: In this example, we will be using Array from() method to create an array from the string value. JavaScript // Creating array form the given string let myArr = Array.from("45878965412365"); // Display output console.log(myArr); Output[ '4', '5', '8', '7', '8', '9', '6', '5', '4', '1', '2', '3', '6', '5' ] We have a complete list of Javascript Array methods, to check those please go through this Javascript Array Complete reference article.Supported Browsers:Chrome 51 Edge 15 Firefox 54 Safari 10 Opera 38 Comment More infoAdvertise with us Next Article JavaScript Array isArray() Method R rathbhupendra Follow Improve Article Tags : JavaScript Web Technologies javascript-array JavaScript-Methods Similar Reads JavaScript Array() Constructor The Array() constructor is used to create Array objects and the array constructor can be called with or without a new keyword, both can create a new Array.Syntax:new Array(Value1, Value2, ...);new Array(ArrayLength);Array(Value1, Value2, ...);Array(ArrayLength);Parameters: ValueN: An array initializ 2 min read JavaScript Array constructor Property The JavaScript Array constructor property is used to return the constructor function for an array object. It only returns the reference of the function and does not return the name of the function. In JavaScript arrays, it returns the function Array(){ [native code] }.Syntax: array.constructorReturn 2 min read JavaScript Array length JavaScript array length property is used to set or return the number of elements in an array. JavaScriptlet a = ["js", "html", "gfg"]; console.log(a.length);Output3 Setting the Length of an ArrayThe length property can also be used to set the length of an array. It allows you to truncate or extend t 2 min read JavaScript Array from() Method The JavaScript Array from() method returns an Array object from any object with a length property or an iterable object. Syntax : Array.from(object, mapFunction, thisValue)Parameters:object: This Parameter is required to specify the object to convert to an array.mapFunction: This Parameter specifies 3 min read JavaScript Array isArray() Method The isArray() method in JavaScript is used to determine whether a given value is an array or not. 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It returns a new array, containing the joined arrays. This method is useful for combining arrays without modifying the originals.Syntax:let newArray1 = oldArray.concat()let newArray2 = oldArray.concat(value0)let newArray3 = oldArray.concat 3 min read JavaScript Array copyWithin() Method The Javascript Array.copyWithin() method considers an array first and then copies part of an array to the same array itself and returns it, without modifying its size but yet the modified data whatever user wishes to have in another's place i.e, copies array element of an array within the same array 3 min read JavaScript Array entries() Method The entries() method in JavaScript is used to create an iterator that returns key/value pairs for each index in the array.It allows iterating over arrays and accessing both the index and value of each element sequentially.Syntax:array.entries()Parameters:This method does not accept any parameters.Re 3 min read Like