getprototypeof (npm): An ES5 mostly-spec-compliant `Object.getPrototypeOf` sham/polyfill/replacement that works in as many engines as possible
Keywords: Object.getPrototypeOf|proto|__proto__|[[Prototype]]|getPrototypeOf|ES5|shim|polyfill|es-shim API|browser|ecmascript|ecmascript5|javascript