With JavaScript 1.6 / ECMAScript 5 you can use the native filter method of an Array in the following way to get an array with unique values: function onlyUnique(value, index, array) { …

Nov 14, 2024 · There are various approaches to remove duplicate elements, that are discussed below. 1. Using set () – The Best Method. Convert the array into a Set in JS, which stores …

Feb 28, 2013 · function uniqueBy(arr, fn) { var unique = {}; var distinct = []; arr.forEach(function (x) { var key = fn(x); if (!unique[key]) { distinct.push(key); unique[key] = true; } }); return distinct; } // …

Mar 5, 2015 · Using jQuery, here's an Array unique function I made: Array.prototype.unique = function { var arr = this; return $.grep(arr, function (v, i) { return $.inArray(v, arr) === i; }); } …

Sep 24, 2018 · There are two common ways (in ES5 and ES6, respectively) of getting unique values in JavaScript arrays of primitive values. Basically, in ES5, you first define a distinct …

Jun 23, 2023 · Discover easy techniques to get unique values from an array in JavaScript! Breakdown of methods, code snippets, and clear explanations for beginners and pros alike.

Jun 10, 2024 · Here are five ways to get all unique values (remove all duplicates) from an array in JavaScript: Use the “ […new Set (arr)]” expression, where you pass the array to the Set () …

This article will show you how to get all unique values in a JavaScript array using for loop, Set, filter, reduce and forEach method.

Sep 3, 2023 · These are three different solutions to remove duplicate values and retrieve only the unique values from a JavaScript array. Depending on your specific use case and performance …

Jul 5, 2024 · The most efficient way to get unique values from an array is by using the Set object along with the spread operator. This method is concise and leverages ES6 features: The Set …