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) { …

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; } // …

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 …

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; }); } …

Nov 27, 2024 · Here are the different ways to get distinct values from an array of objects in JavaScript. 1. Using map() and filter() Methods. This approach is simple and effective for …

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 () …

Feb 14, 2025 · Using spread operator and set function is the easiest way to get unique items in JavaScript array. If you want to selectively remove only some duplicates from your array, then …

Nov 23, 2024 · Explore four effective methods to retrieve unique values from a JavaScript array while eliminating duplicates and maintaining order.

Jan 5, 2024 · Removing duplicates from an array in JavaScript can be done in a variety of ways, such as using Array.prototype.reduce(), Array.prototype.filter() or even a simple for loop. But …