Transforms new.target meta property

Allow parsing of Decimal, Binary, Hex and Octal literals that contain a Numeric Literal Separator

Ensure that no reserved words are used.

Compile regular expressions using named groups to ES5.

Allow parsing of the U+2028 LINE SEPARATOR and U+2029 PARAGRAPH SEPARATOR in JS strings

Allow parsing of the nullish-coalescing operator

Compile ES2015 Unicode escapes to ES5

Transform import() expressions

Remove nullish coalescing operator

Compile object rest and spread to ES5

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

Turn async functions into ES2015 generators

Allow parsing of optional catch bindings

Turn async generator functions into ES2015 generators

Allow parsing of top-level await in modules

Turn JSX into React function calls

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

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

Allow parsing of '#foo in obj' brand checks

Compile export namespace to ES2015