wiki/content/20201113111815-es2019.md

id	title
7aa626ee-1b0b-4d7c-8e11-751f8b9cac1f	ES2019

Array

Prototype methods

• Array.prototype.flatMap()
• Array.prototype.flat()

Sort

• .sort() is guaranteed to be stable

Control flow

• Optional Catch Binding

Objects

Functions

• Object.fromEntries

Strings

String Prototype methods

• trimStart
• trimEnd

Symbols

Symbol Prototype methods

• Symbol.prototype.description