Objectcreate精品文章

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  javascript中Function、ArrowFunction和GeneratorFunctio

  ...關(guān)，如果newTarget.prototype存在，且是Object對(duì)象，則this就是ObjectCreate(newTarget.prototype),ObjectCreate是Object.create內(nèi)部調(diào)用的方法，如果newTarget.prototype不存在或者不是Object對(duì)象，this相當(dāng)于ObjectCreate(Object.prototype)。 function ...

  cyixlq 2019-08-22 11:15 評(píng)論0 收藏0
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  __proto__ 屬性與 ES6 classes 的繼承

  ...TypeError exception. Let constructorParent be superclass. 7. Let proto be ObjectCreate(protoParent). ... 12. Let constructorInfo be the result of performing DefineMethod for constructor with argu...

  newsning 2019-08-21 10:42 評(píng)論0 收藏0
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  Js 面向?qū)ο笮〗Y(jié)

  ...rototype) 這時(shí)候不會(huì)報(bào)錯(cuò)了,補(bǔ)上Object.create的polyfill function objectCreate (proto) { function F() {} F.prototype = proto; return new F(); } 然而還有一點(diǎn)小漏洞，當(dāng)我們查看wangcai.constructor時(shí)，會(huì)發(fā)現(xiàn)指向的是Animal。因此我們需要修復(fù)一下...

  SQC 2019-08-22 18:28 評(píng)論0 收藏0
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  JS 進(jìn)階 （一）作用域深入和面向?qū)ο?/a>

  ...100; } A.prototype.getX=function(){ console.log(this.x); } B.prototype=objectCreate(A.prototype); B.prototype.constructor=B; var n=new B; n.getx(); function objectCreate(o){ function Fn(){ ...

  chengtao1633 2019-08-22 18:50 評(píng)論0 收藏0
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  重讀Javascript之Object

  ...ype(O) is neither Object nor Null, throw a TypeError exception. Let obj be ObjectCreate(O). If the argument Properties is present and not undefined, then Return ObjectDefineProperties(obj, Properti...

  Alex 2019-08-19 17:18 評(píng)論0 收藏0