diff options
Diffstat (limited to 'files/zh-cn/web/javascript/reference/global_objects/object')
11 files changed, 30 insertions, 30 deletions
diff --git a/files/zh-cn/web/javascript/reference/global_objects/object/__definegetter__/index.html b/files/zh-cn/web/javascript/reference/global_objects/object/__definegetter__/index.html index 28773a6bc8..a9c388d009 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/object/__definegetter__/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/object/__definegetter__/index.html @@ -22,7 +22,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Object/__defineGetter__ </dl> <h2 id="Description" name="Description">描述</h2> <p><code>__defineGetter__ 方法可以为一个已经存在的对象设置（新建或修改）访问器属性，</code>而 {{jsxref("Operators/get", "对象字面量中的 get 语法", "", 1)}} 只能在新建一个对象时使用。</p> -<h2 id="Examples" name="Examples"><span class="def"><span>示例</span></span></h2> +<h2 id="Examples" name="Examples">示例</h2> <pre class="brush: js">// 请注意，该方法是非标准的： var o = {}; diff --git a/files/zh-cn/web/javascript/reference/global_objects/object/__definesetter__/index.html b/files/zh-cn/web/javascript/reference/global_objects/object/__definesetter__/index.html index 81a159b69f..4c9dce1dd4 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/object/__definesetter__/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/object/__definesetter__/index.html @@ -5,7 +5,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Object/__defineSetter__ --- <div> {{JSRef("Global_Objects", "Object")}} {{non-standard_header}} {{deprecated_header}}</div> -<h2 id="Summary" name="Summary"><span class="def"><span>概述</span></span></h2> +<h2 id="Summary" name="Summary">概述</h2> <p><code><strong>__defineSetter__ </strong>方法可以将一个函数绑定在当前对象的指定属性</code>上，当那个属性被赋值时，你所绑定的函数就会被调用。</p> <h2 id="Syntax" name="Syntax">语法</h2> <pre class="syntaxbox"><code><var>obj</var>.__defineSetter__(<var>prop</var>, <var>fun</var>)</code></pre> @@ -32,7 +32,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Object/__defineSetter__ <p><code>__defineSetter__</code> 方法可以为一个已经存在的对象设置（新建或修改）访问器属性，而 {{jsxref("Operators/set", "对象字面量中的 set 语法", "", 1)}} 只能在新建一个对象时使用。</p> <h2 id="Specifications" name="Specifications">规范</h2> <p>不属于任何规范。</p> -<h2 id="Browser_compatibility" name="Browser_compatibility"><span class="def"><span>浏览器兼容性</span></span></h2> +<h2 id="Browser_compatibility" name="Browser_compatibility">浏览器兼容性</h2> <div> {{CompatibilityTable}}</div> <div id="compat-desktop"> diff --git a/files/zh-cn/web/javascript/reference/global_objects/object/create/index.html b/files/zh-cn/web/javascript/reference/global_objects/object/create/index.html index a9b54f733d..073605d77f 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/object/create/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/object/create/index.html @@ -75,7 +75,7 @@ console.log('Is rect an instance of Shape?', rect instanceof Shape); // true rect.move(1, 1); // Outputs, 'Shape moved.'</pre> -<p>如果你希望能继承到多个对象，则可以使用<span class="short_text" id="result_box" lang="zh-CN"><span>混入的方式。</span></span></p> +<p>如果你希望能继承到多个对象，则可以使用混入的方式。</p> <pre class="brush: js notranslate">function MyClass() { SuperClass.call(this); diff --git a/files/zh-cn/web/javascript/reference/global_objects/object/defineproperty/index.html b/files/zh-cn/web/javascript/reference/global_objects/object/defineproperty/index.html index beaca31a6a..c711f8b4d5 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/object/defineproperty/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/object/defineproperty/index.html @@ -88,7 +88,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Object/defineProperty <h4 id="描述符默认值汇总">描述符默认值汇总</h4> <ul> - <li>拥有布尔值的键 <code>configurable</code>、<code>enumerable</code> 和 <code>writable</code> 的默认值都是 <span style="font-family: courier new,andale mono,monospace; line-height: 1.5;"><code>false</code></span>。</li> + <li>拥有布尔值的键 <code>configurable</code>、<code>enumerable</code> 和 <code>writable</code> 的默认值都是 <code>false</code>。</li> <li>属性值和函数的键 <code>value</code>、<code>get</code> 和 <code>set</code> 字段的默认值为 <code>undefined</code>。</li> </ul> @@ -172,11 +172,11 @@ Object.defineProperty(obj, "key", withValue("static")); <h2 id="示例">示例</h2> -<p>如果你想了解如何使用 <code>Object.defineProperty</code> 方法和<em>类二进制标记</em>语法<span style="line-height: 1.5;">，可以看看</span>这些<a href="/en-US/docs/JavaScript/Reference/Global_Objects/Object/defineProperty/Additional_examples" style="line-height: 1.5;">额外示例</a><span style="line-height: 1.5;">。</span></p> +<p>如果你想了解如何使用 <code>Object.defineProperty</code> 方法和<em>类二进制标记</em>语法，可以看看这些<a href="/en-US/docs/JavaScript/Reference/Global_Objects/Object/defineProperty/Additional_examples" style="line-height: 1.5;">额外示例</a>。</p> <h3 id="创建属性">创建属性</h3> -<p>如果对象中不存在指定的属性，<span style="font-family: courier new,andale mono,monospace; line-height: 1.5;"><code>Object.defineProperty()</code></span> 会创建这个属性。当描述符中省略某些字段时，这些字段将使用它们的默认值。</p> +<p>如果对象中不存在指定的属性，<code>Object.defineProperty()</code> 会创建这个属性。当描述符中省略某些字段时，这些字段将使用它们的默认值。</p> <pre class="brush: js notranslate">var o = {}; // 创建一个新对象 diff --git a/files/zh-cn/web/javascript/reference/global_objects/object/getownpropertydescriptors/index.html b/files/zh-cn/web/javascript/reference/global_objects/object/getownpropertydescriptors/index.html index f07f3bfa33..ebce4498fa 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/object/getownpropertydescriptors/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/object/getownpropertydescriptors/index.html @@ -41,14 +41,14 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertyDes <p>创建子类的典型方法是定义子类，将其原型设置为超类的实例，然后在该实例上定义属性。这么写很不优雅，特别是对于 getters 和 setter 而言。 相反，您可以使用此代码设置原型：</p> -<pre class="brush: js line-numbers language-js"><code class="language-js"><span class="keyword token">function</span> <span class="function token">superclass</span><span class="punctuation token">(</span><span class="punctuation token">)</span> <span class="punctuation token">{</span><span class="punctuation token">}</span> -superclass<span class="punctuation token">.</span>prototype <span class="operator token">=</span> <span class="punctuation token">{</span> - <span class="comment token">// 在这里定义方法和属性</span> -<span class="punctuation token">}</span><span class="punctuation token">;</span> -<span class="keyword token">function</span> <span class="function token">subclass</span><span class="punctuation token">(</span><span class="punctuation token">)</span> <span class="punctuation token">{</span><span class="punctuation token">}</span> -subclass<span class="punctuation token">.</span>prototype <span class="operator token">=</span> Object<span class="punctuation token">.</span><span class="function token">create</span><span class="punctuation token">(</span>superclass<span class="punctuation token">.</span>prototype<span class="punctuation token">,</span> Object<span class="punctuation token">.</span><span class="function token">getOwnPropertyDescriptors</span><span class="punctuation token">(</span><span class="punctuation token">{</span> - <span class="comment token">// 在这里定义方法和属性</span> -<span class="punctuation token">}</span><span class="punctuation token">)</span><span class="punctuation token">)</span><span class="punctuation token">;</span></code></pre> +<pre class="brush: js line-numbers language-js"><code class="language-js">function superclass() {} +superclass.prototype = { + // 在这里定义方法和属性 +}; +function subclass() {} +subclass.prototype = Object.create(superclass.prototype, Object.getOwnPropertyDescriptors({ + // 在这里定义方法和属性 +}));</code></pre> <h2 id="规范">规范</h2> diff --git a/files/zh-cn/web/javascript/reference/global_objects/object/is/index.html b/files/zh-cn/web/javascript/reference/global_objects/object/is/index.html index 860a49d231..f9f8f0a2fd 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/object/is/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/object/is/index.html @@ -14,7 +14,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Object/is <p><code><strong>Object.is()</strong></code> 方法判断两个值是否为<a href="/zh-CN/docs/Web/JavaScript/Equality_comparisons_and_sameness">同一个值</a>。</p> -<p><font face="x-locale-heading-primary, zillaslab, Palatino, Palatino Linotype, x-locale-heading-secondary, serif"><span style="font-size: 37.33327865600586px;"><strong>语法</strong></span></font></p> +<p><font face="x-locale-heading-primary, zillaslab, Palatino, Palatino Linotype, x-locale-heading-secondary, serif"><strong>语法</strong></font></p> <p> </p><pre class="syntaxbox notranslate"><code>Object.is(<var>value1</var>, <var>value2</var>);</code></pre> @@ -119,7 +119,7 @@ Object.is(-0, -0); // true Object.is(NaN, 0/0); // true </pre> -<p><font face="x-locale-heading-primary, zillaslab, Palatino, Palatino Linotype, x-locale-heading-secondary, serif"><span style="font-size: 37.33327865600586px;"><strong>规范</strong></span></font></p> +<p><font face="x-locale-heading-primary, zillaslab, Palatino, Palatino Linotype, x-locale-heading-secondary, serif"><strong>规范</strong></font></p> <p> </p><table> 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 79ab23e2b6..0bc82c3e09 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 @@ -49,7 +49,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Object/setPrototypeOf <h2 id="Notes" name="Notes">Polyfill</h2> -<p><span class="short_text" id="result_box" lang="en"><span>我们必须借助非标准的</span> </span> </p> +<p>我们必须借助非标准的 </p> <p>使用较旧的 {{jsxref("Object.prototype.__proto__")}} 属性，我们可以很容易地定义Object.setPrototypeOf 如果它不可用：</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 23d070b86a..e609077520 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 @@ -73,7 +73,7 @@ alert(new Person("Joe").toSource()); // ---> new Person("Joe")</pre> <h3 id="循环引用限制">循环引用限制</h3> -<p><span id="noHighlight_0.3266603437527873">对于包含对自身的引用的对象 (例如, 循环链表或可以遍历两种方式的树), </span><code>toSource()</code><span>不会重新创建自引用, 如火狐24。例如:</span></p> +<p>对于包含对自身的引用的对象 (例如, 循环链表或可以遍历两种方式的树), <code>toSource()</code>不会重新创建自引用, 如火狐24。例如:</p> <pre class="brush: js">var obj1 = {}; var obj2 = { a: obj1 }; @@ -87,7 +87,7 @@ obj1 = eval(objSource); console.log('Cyclical: ' + (obj1.b.a == obj1));</pre> -<p><span id="noHighlight_0.30716570898096807">如果使用循环结构, 并且需要 </span><code>toSource()</code><span>, 则对象必须提供对 </span><code>toSource()</code><span> 的重写, 无论是对构造函数的引用还是提供匿名函数。</span></p> +<p>如果使用循环结构, 并且需要 <code>toSource()</code>, 则对象必须提供对 <code>toSource()</code> 的重写, 无论是对构造函数的引用还是提供匿名函数。</p> <h2 id="Examples" name="Examples">示例</h2> diff --git a/files/zh-cn/web/javascript/reference/global_objects/object/tostring/index.html b/files/zh-cn/web/javascript/reference/global_objects/object/tostring/index.html index 7ff9cdb557..55310e85b0 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/object/tostring/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/object/tostring/index.html @@ -41,7 +41,7 @@ o.toString(); // 返回 [object Object] <h3 id="覆盖默认的_toString_方法">覆盖默认的 <code>toString</code> 方法</h3> -<p>可以自定义一个方法，来取代默认的 <code>toString()</code> 方法。该 <code>toString()</code> 方法不能传入参数，并且必须返回一个字符串。自定义的 <code>toString()</code><span> 方法可以是任何我们需要的值，但如果它附带有关对象的信息，它将变得非常有用。</span></p> +<p>可以自定义一个方法，来取代默认的 <code>toString()</code> 方法。该 <code>toString()</code> 方法不能传入参数，并且必须返回一个字符串。自定义的 <code>toString()</code> 方法可以是任何我们需要的值，但如果它附带有关对象的信息，它将变得非常有用。</p> <p>以下代码定义了 <code>Dog</code> 对象类型，并创建了一个 <code>Dog</code> 类型的 <code>theDog</code> 对象：</p> diff --git a/files/zh-cn/web/javascript/reference/global_objects/object/valueof/index.html b/files/zh-cn/web/javascript/reference/global_objects/object/valueof/index.html index 1d732df222..c9f98bebc4 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/object/valueof/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/object/valueof/index.html @@ -149,16 +149,16 @@ console.log( str2.valueOf() === str2 ); // false</pre> <h3 id="改写_.prototype.valueof">改写 .prototype.valueof</h3> -<pre class="brush: js line-numbers language-js"><code class="language-js"><span class="keyword token">function</span> <span class="function token">MyNumberType</span><span class="punctuation token">(</span>n<span class="punctuation token">)</span> <span class="punctuation token">{</span> - <span class="keyword token">this</span><span class="punctuation token">.</span>number <span class="operator token">=</span> n<span class="punctuation token">;</span> -<span class="punctuation token">}</span> +<pre class="brush: js line-numbers language-js"><code class="language-js">function MyNumberType(n) { + this.number = n; +} -MyNumberType<span class="punctuation token">.</span>prototype<span class="punctuation token">.</span>valueOf <span class="operator token">=</span> <span class="keyword token">function</span><span class="punctuation token">(</span><span class="punctuation token">)</span> <span class="punctuation token">{</span> - <span class="keyword token">return</span> <span class="keyword token">this</span><span class="punctuation token">.</span>number<span class="punctuation token">;</span> -<span class="punctuation token">}</span><span class="punctuation token">;</span> +MyNumberType.prototype.valueOf = function() { + return this.number; +}; -<span class="keyword token">var</span> myObj <span class="operator token">=</span> <span class="keyword token">new</span> <span class="class-name token">MyNumberType</span><span class="punctuation token">(</span><span class="number token">4</span><span class="punctuation token">)</span><span class="punctuation token">;</span> -myObj <span class="operator token">+</span> <span class="number token">3</span><span class="punctuation token">;</span> <span class="comment token">// 7</span></code></pre> +var myObj = new MyNumberType(4); +myObj + 3; // 7</code></pre> <h2 id="规范">规范</h2> diff --git a/files/zh-cn/web/javascript/reference/global_objects/object/values/index.html b/files/zh-cn/web/javascript/reference/global_objects/object/values/index.html index c2d4cc3526..d744ebcb13 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/object/values/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/object/values/index.html @@ -57,7 +57,7 @@ console.log(Object.values('foo')); // ['f', 'o', 'o']</pre> <h2 id="Polyfill">Polyfill </h2> -<p><code><font face="Open Sans, arial, x-locale-body, sans-serif"><span style="background-color: #ffffff;">如果要 </span></font>Object.values</code>兼容不支持它的旧环境，可在<font face="consolas, Liberation Mono, courier, monospace"><span style="background-color: #eeeeee;"> </span></font><a href="https://github.com/tc39/proposal-object-values-entries">tc39/proposal-object-values-entries</a> 或 <a href="https://github.com/es-shims/Object.values">es-shims/Object.values</a> 中找到 Polyfill 。</p> +<p><code><font face="Open Sans, arial, x-locale-body, sans-serif">如果要 </font>Object.values</code>兼容不支持它的旧环境，可在<font face="consolas, Liberation Mono, courier, monospace"> </font><a href="https://github.com/tc39/proposal-object-values-entries">tc39/proposal-object-values-entries</a> 或 <a href="https://github.com/es-shims/Object.values">es-shims/Object.values</a> 中找到 Polyfill 。</p> <p>根据<strong>Object.keys()</strong>的Polyfill仿写一个：</p> |