flat & flatMap array methods

Overview

Methods to flatten possible sub arrays which are found in the array with the help of concatenating their elements.

Specifications

ECMAScript Language Specification # sec-array.prototype.flatmap

Syntax

// Arrow function flatMap((currentValue) => { /* ... */
 } ) flatMap((currentValue, index) => { /* ... */
 } ) flatMap((currentValue, index, array) => { /* ... */
 } ) // Callback function flatMap(callbackFn) flatMap(callbackFn, thisArg) // Inline callback function flatMap(function(currentValue) { /* ... */
 }) flatMap(function(currentValue, index) { /* ... */
 }) flatMap(function(currentValue, index, array){ /* ... */
 }) flatMap(function(currentValue, index, array) { /* ... */
 }, thisArg)

Code snippets

array-flat.html

Source:array-flat.html

flatmap.html

Source:flatmap.html

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