dunder-proto200.1mMIT1.0.1If available, the `Object.prototype.proto` accessor and mutator, call-bound
es-shimsIl y a 7 months has-proto167.3mMIT1.2.0Does this environment have the ability to get the [[Prototype]] of an object on creation with `proto`?
inspect-jsIl y a 7 months__proto__, prototype, proto, set reflect.getprototypeof115.5mMIT1.0.10An ES2015 mostly-spec-compliant Reflect.getPrototypeOf
sham/polyfill/replacement that works in as many engines as possible
es-shimsIl y a 6 months__proto__, Reflect.getPrototypeOf, Object.getPrototypeOf, proto es6-shim7.9mMIT0.35.8ECMAScript 6 (Harmony) compatibility shims for legacy JavaScript engines
paulmillrIl y a over 2 years__proto__, ecmascript, harmony, es6 stringmap1.1mMIT0.2.2fast and robust stringmap
olovIl y a about 3 years__proto__, stringmap, hashmap, hash