# New JavaScript Set methods

DevFeed: [New JavaScript Set methods](<https://devfeed.tech/articles/new-javascript-set-methods-4080.md>)

Original publisher: [Read original article](<https://developer.mozilla.org/en-US/blog/javascript-set-methods/>)

Author: brian-smith

Published: 2024-06-24T00:00:00Z

Content type: tutorial

Language: en

Sources: [MDN Blog](<https://devfeed.tech/sources/mdn-blog.md>)

Topics: [Web Development](<https://devfeed.tech/topics/web-development.md>)

Tags: [browsers](<https://devfeed.tech/tags/browsers.md>), [firefox](<https://devfeed.tech/tags/firefox.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [javascript](<https://devfeed.tech/tags/javascript.md>), [learn](<https://devfeed.tech/tags/learn.md>), [performance](<https://devfeed.tech/tags/performance.md>), [polyfill](<https://devfeed.tech/tags/polyfill.md>)

## AI overview

An introductory tutorial on newly supported JavaScript Set methods for comparing and composing sets, with examples and notes on uniqueness and performance.

## Source excerpt

New JavaScript Set methods are landing across browsers. Learn about sets, how you can use these methods to compare different sets, create new sets with specific properties, and more.