diff options
Diffstat (limited to 'files/zh-cn/web/javascript/reference/global_objects/object')
5 files changed, 5 insertions, 5 deletions
diff --git a/files/zh-cn/web/javascript/reference/global_objects/object/getownpropertydescriptor/index.html b/files/zh-cn/web/javascript/reference/global_objects/object/getownpropertydescriptor/index.html index c9854cdd57..23450e809f 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/object/getownpropertydescriptor/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/object/getownpropertydescriptor/index.html @@ -135,7 +135,7 @@ Object.getOwnPropertyDescriptor('foo', 0); <div>{{Compat("javascript.builtins.Object.getOwnPropertyDescriptor")}}</div> -<div></div> + <div></div> diff --git a/files/zh-cn/web/javascript/reference/global_objects/object/proto/index.html b/files/zh-cn/web/javascript/reference/global_objects/object/proto/index.html index 90f9790a0b..5a24536147 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/object/proto/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/object/proto/index.html @@ -22,7 +22,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Object/proto <div>{{jsxref("Object.prototype")}} 的 <code>__proto__</code> 属性是一个访问器属性（一个getter函数和一个setter函数）, 暴露了通过它访问的对象的内部<code>[[Prototype]]</code> (一个对象或 {{jsxref("Global_Objects/null", "null")}})。</div> -<div></div> + <p>使用<code>__proto__</code>是有争议的，也不鼓励使用它。因为它从来没有被包括在EcmaScript语言规范中，但是现代浏览器都实现了它。<code>__proto__</code>属性已在ECMAScript 6语言规范中标准化，用于确保Web浏览器的兼容性，因此它未来将被支持。它已被不推荐使用, 现在更推荐使用{{jsxref("Object.getPrototypeOf")}}/{{jsxref("Reflect.getPrototypeOf")}} 和{{jsxref("Object.setPrototypeOf")}}/{{jsxref("Reflect.setPrototypeOf")}}（尽管如此，设置对象的[[Prototype]]是一个缓慢的操作，如果性能是一个问题，应该避免）。</p> diff --git a/files/zh-cn/web/javascript/reference/global_objects/object/seal/index.html b/files/zh-cn/web/javascript/reference/global_objects/object/seal/index.html index ad57d66c17..76308b311d 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/object/seal/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/object/seal/index.html @@ -12,7 +12,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Object/seal <div><code><strong>Object.seal()</strong></code>方法封闭一个对象，阻止添加新属性并将所有现有属性标记为不可配置。当前属性的值只要原来是可写的就可以改变。</div> -<div></div> + <div>{{EmbedInteractiveExample("pages/js/object-seal.html")}}</div> diff --git a/files/zh-cn/web/javascript/reference/global_objects/object/setprototypeof/index.html b/files/zh-cn/web/javascript/reference/global_objects/object/setprototypeof/index.html index a73a8c612c..6bc6b42924 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/object/setprototypeof/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/object/setprototypeof/index.html @@ -18,7 +18,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Object/setPrototypeOf <div><strong>Object.setPrototypeOf() </strong>方法设置一个指定的对象的原型 ( 即, 内部[[Prototype]]属性）到另一个对象或 {{jsxref("null")}}。</div> -<div></div> + <div class="warning"> <p><strong>警告：</strong>由于现代 JavaScript 引擎优化属性访问所带来的特性的关系，更改对象的 <code>[[Prototype]]</code>在<em><strong>各个</strong></em>浏览器和 JavaScript 引擎上都是一个很慢的操作。其在更改继承的性能上的影响是微妙而又广泛的，这不仅仅限于 <code>obj.__proto__ = ...</code> 语句上的时间花费，而且可能会延伸到<em><strong>任何</strong></em>代码，那些可以访问<em><strong>任何</strong></em><code>[[Prototype]]</code>已被更改的对象的代码。如果你关心性能，你应该避免设置一个对象的 <code>[[Prototype]]</code>。相反，你应该使用 {{jsxref("Object.create()")}}来创建带有你想要的<code>[[Prototype]]</code>的新对象。</p> diff --git a/files/zh-cn/web/javascript/reference/global_objects/object/tosource/index.html b/files/zh-cn/web/javascript/reference/global_objects/object/tosource/index.html index 5713289596..88affb3521 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/object/tosource/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/object/tosource/index.html @@ -123,4 +123,4 @@ theDog = new Dog("Gabby", "Lab", "chocolate", "girl");</pre> <li>{{jsxref("Object.prototype.toString()")}}</li> </ul> -<p></p> + |