The specification mentions neither ES6 nor ES2015, though they are handy abbreviations. Officially, the name is 'ECMAScript 2015 Language' and it's the 6th Edition of the ECMA-262 standard. Which name is correct? What name should you use? Officially it's ECMAScript 2015 Language You see both ES6 and ES2015 names used for the version of JavaScript that introduces arrow functions, template strings, and Promises. You can check the dates by looking at the compatibility table in MDN for each feature (for hasIndices it says Node doesn't support that, but it was added on Node 16, so the article is just outdated).New features in JS engines before in ECMAScript standard indices ('d' flag): Available since 2021 in browsers and Node. hasOwn(): Available since 2021 in browsers and Node. at() Method: Available since 2021 in browsers and Node. cause: Available since 2021 in browsers and Node. Static class initialization blocks: Available since 2021 in browsers and Node.Static class fields and methods: Available since 2016 in browsers and Node.Private instance fields, methods, and accessors: Available since 2019 in browsers and Node.Top-level await: Available since 2021 in browsers, 2020 in Node.Just to clarify, these aren't 'new new', they were actually released in 2021 or earlier, not 2022: Many developers utilized as an alternative IIFE (Immediately Invoked Function Expression) as a way to get access to the feature. When the async/await feature was first introduced, attempting to use an await outside of an async function resulted in a Synta圎rror. Now the await can be used at the top level of a module and can be super handy when initializing imports and creating fallbacks. This was fine until it wasn't, like when we hit the top level of our module and could not use the await keyword. Until this point, we could only use await in the scope of async functions. Private instance fields, methods, and accessors.The new ECMAScript features for this year are: Also if you want to see the ES2021 I had created the next blog post for that New JavaScript Features ECMAScript 2021 (with examples) There are some new features that have been incorporated and could be used in our javascript projects. ECMAScript 2022 is the version of ECMAScript corresponding to this year.

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