> And in the next few sections it includes someone who wants to build on the pro...

mcluck on March 10, 2022 | parent | context | favorite | on: First look: adding type annotations to JavaScript

> And in the next few sections it includes someone who wants to build on the proposal including using type hints to optimize code.

This changes literally nothing about the JS language. JS engines already attempt to determine the types of things to optimize the code they generate. Type annotations would just allow them to make more aggressive optimizations.

Turing_Machine on March 11, 2022 [–]

> This changes literally nothing about the JS language.

Besides adding a bunch of new syntax, of which JS already has far too much.