Compile exponentiation operator to ES5
Transform optional chaining operators into a series of nil checks
Compile ES2015 shorthand properties to ES5
Compile ES2015 spread to ES5
Compile ES2015 default and rest parameters to ES5
Compile ES2015 arrow functions to ES5
Compile objects with duplicate keys to valid strict ES5
Remove nullish coalescing operator
Compile ES2015 sticky regex to an ES5 RegExp constructor
Compile ES2015 unicode string and number literals to ES5
This plugin transforms private class methods
Compile ES2015 template literals to ES5
Transform import() expressions
Compile ES2015 Unicode regex to ES5
Ensure that reserved words are quoted in object property keys
Compile object rest and spread to ES5
Ensure that reserved words are quoted in property accesses
Remove numeric separators from Decimal, Binary, Hex and Octal literals
Ensure that no reserved words are used.
Transform class static blocks
Compile ES2015 Unicode escapes to ES5
This transformer wraps all typeof expressions with a method that replicates native behaviour. (ie. returning “symbol” for symbols)
Compile ES2015 object super to ES5
Transforms logical assignment operators into short-circuited assignments