ES2019 added the Array flatMap() method to JavaScript. The flatMap() method first maps all elements of an array and then creates a new array by flattening the array. Example

Jun 10, 2010 · The $.each() function can be used to iterate over any collection, whether it is a map (JavaScript object) or an array. In the case of an array, the callback is passed an array index and a corresponding array value each time.

Feb 17, 2012 · The standard way to iterate an array in JavaScript is a vanilla for-loop: var length = arr.length, element = null; for (var i = 0; i < length; i++) { element = arr[i]; // Do something with element }

Jan 10, 2025 · JavaScript for Loop can be used to iterate over an array. The for loop runs for the length of the array and in each iteration it executes the code defined inside. We can access the array elements using the index number.

Jul 21, 2023 · JavaScript Array iteration methods perform some operation on each element of an array. Array iteration means accessing each element of an array. There are some examples of Array iteration methods are given below: Using Array forEach() Method; Using Array some() Method; Using Array map() Method; Method 1: Using Array forEach() Method

Apr 3, 2025 · Iterative methods iterate the array like the following (with a lot of technical details omitted):

Mar 10, 2020 · So, there are probably lots of ways out there to iterate an array on javascript, like inverse do-while loops. or any of the other not-so-popular Array.prototype methods like every, some, reduceRight or flatMap, but here are some of the most popular ways to …

Jun 23, 2022 · There are numerous methods for looping through an array in JavaScript. In this article, we will go over the most commonly used so you can learn different approaches and understand how they work. We will use the following array for this article: You can use a while loop to evaluate a condition that is enclosed in parenthesis ().

Aug 25, 2021 · In this tutorial, we will use iteration methods to loop through arrays, perform functions on each item in an array, filter the desired results of an array, reduce array items down to a single value, and search through arrays to find values or indices.

Jan 3, 2025 · While the trusty for loop is a classic approach, JavaScript offers a rich set of tools for array iteration, each with its own strengths and use cases. Let’s explore these different methods and discover how to choose the right one for the job.