ECMAScript 2020 spec for JavaScript approved

ECMAScript 2020, the lates version of the official specification underlying JavaScript, was formally approval by ECMA International, and the ECMA technical committee overseeing the specification, on June 16.

ECMAScript 2020 introduces multiple features ranging from a new import() facility for loading modules to a new BigInt type for working with arbitrary precision integers.

Specific features introduced by ECMAScript 2020 include:

The last update to ECMAScript, ECMAScript 2019, featured capabilities such as prototype.flatMap for nested arrays.