JS: ECMAScript 2022

• JS: Array.prototype.at
• JS: String.prototype.at (extract char at index)
• JS: Object.hasOwn

• TypedArrays.prototype.at

• await for modules
• public and private keywords
• static blocks inside classes, for class initialization
• syntax #x in obj to test for private fields on objects
• regex /d flag
• cause property on Error objects