Features

List of all JS+ features

TC39

Stage 3

Feature	Type	CoreJS	Babel	Civet	JS+
Decorators	Syntax	✅	✅	❌	✅

Stage 2.7

Feature	Type	CoreJS	Babel	Civet	JS+
Iterator chunking	Polyfill	✅	❌	❌	✅
Promise await dictionary	Polyfill	❌	❌	❌	✅

Stage 2

Feature	Type	CoreJS	Babel	Civet	JS+
Discard binding	Syntax		✅	❌	✅
Math.clamp	Polyfill	✅	❌	❌	✅
Object.keysLength	Polyfill	❌	❌	❌	✅
Pipeline operator	Syntax		✅	✅	✅
Promise.isPromise	Polyfill	❌	❌	❌	✅
Throw expressions	Syntax		✅	❌	✅

Stage 1

Feature	Type	CoreJS	Babel	Civet	JS+
Export default from	Syntax		✅	❌	✅
Object property count	Polyfill	❌	❌	❌	✅
Random	Polyfill	❌	❌	❌	✅

Stage 0

Feature	Type	CoreJS	Babel	Civet	JS+
Async do expressions	Syntax		✅	✅	✅
Do expressions	Syntax		✅	✅	✅

Stage inactive

Feature	Type	CoreJS	Babel	Civet	JS+
Negative array subscript	Runtime		❌	❌	✅
Typeof null operator	Runtime		❌	❌	✅