Compile objects with duplicate keys to valid strict ES5

Compile object rest and spread to ES5

Turn async generator functions into ES2015 generators

Compile exponentiation operator to ES5

Remove nullish coalescing operator

Allow parsing of optional catch bindings

Transform import() expressions

Allow parsing of top-level await in modules

Remove numeric separators from Decimal, Binary, Hex and Octal literals

Compile export namespace to ES2015

Compile regular expressions using the `s` (`dotAll`) flag to ES5.

Compile ES2015 Unicode escapes to ES5

This transformer wraps all typeof expressions with a method that replicates native behaviour. (ie. returning “symbol” for symbols)

Turn async functions into ES2015 generators

Transforms logical assignment operators into short-circuited assignments

Allow parsing of '#foo in obj' brand checks

A Babel plugin to inject imports to regenerator-runtime

Turn JSX into React function calls

A Babel plugin to inject imports to core-js@2 polyfills

Transform class static blocks