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author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
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committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
commit | 33058f2b292b3a581333bdfb21b8f671898c5060 (patch) | |
tree | 51c3e392513ec574331b2d3f85c394445ea803c6 /files/zh-cn/web/javascript/reference/global_objects/referenceerror | |
parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
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diff --git a/files/zh-cn/web/javascript/reference/global_objects/referenceerror/index.html b/files/zh-cn/web/javascript/reference/global_objects/referenceerror/index.html new file mode 100644 index 0000000000..1d42786c00 --- /dev/null +++ b/files/zh-cn/web/javascript/reference/global_objects/referenceerror/index.html @@ -0,0 +1,168 @@ +--- +title: ReferenceError +slug: Web/JavaScript/Reference/Global_Objects/ReferenceError +translation_of: Web/JavaScript/Reference/Global_Objects/ReferenceError +--- +<div>{{JSRef("Global_Objects", "Error", "EvalError,InternalError,RangeError,ReferenceError,SyntaxError,TypeError,URIError")}}</div> + +<h2 id="Summary" name="Summary">概述</h2> + +<p><code><strong>ReferenceError(引用错误)</strong></code> 对象代表当一个不存在的变量被引用时发生的错误。</p> + +<h2 id="Syntax" name="Syntax">语法</h2> + +<pre class="syntaxbox"><code>new ReferenceError([<var>message</var>[, <var>fileName</var>[, <var>lineNumber</var>]]])</code></pre> + +<h3 id="Parameters" name="Parameters">参数</h3> + +<dl> + <dt><code>message</code></dt> + <dd>可选。描述可读的错误信息</dd> + <dt><code>fileName</code> {{non-standard_inline}}</dt> + <dd>可选。包含引起异常代码的文件名</dd> + <dt><code>lineNumber</code> {{non-standard_inline}}</dt> + <dd>可选。引起异常的代码行号</dd> +</dl> + +<h2 id="Description" name="Description">描述</h2> + +<p>当你尝试引用一个未被定义的变量时,将会抛出一个 <code>ReferenceError</code> 。</p> + +<h2 id="Properties" name="Properties">属性</h2> + +<dl> + <dt>{{jsxref("ReferenceError.prototype")}}</dt> + <dd>Allows the addition of properties to an <code>ReferenceError</code> object.</dd> +</dl> + +<h2 id="Methods" name="Methods">方法</h2> + +<p>全局的 <code>ReferenceError</code> 本身并不包含有方法,但是他可以从原型链上继承一些方法</p> + +<h2 id="ReferenceError_instances" name="ReferenceError_instances"><code>ReferenceError</code> 实例</h2> + +<h3 id="Properties_of_ReferenceError_instances" name="Properties_of_ReferenceError_instances">属性</h3> + +<div>{{page('/en-US/docs/Web/JavaScript/Reference/Global_Objects/ReferenceError/prototype', 'Properties')}}</div> + +<h3 id="Methods_of_ReferenceError_instances" name="Methods_of_ReferenceError_instances">方法</h3> + +<div>{{page('/en-US/docs/Web/JavaScript/Reference/Global_Objects/ReferenceError/prototype', 'Methods')}}</div> + +<h2 id="Examples" name="Examples">例子</h2> + +<h3 id="Example:_Catch_an_ReferenceError" name="Example:_Catch_an_ReferenceError">例: 捕获一个 <code>ReferenceError</code></h3> + +<pre class="brush: js">try { + var a = undefinedVariable; +} catch (e) { + console.log(e instanceof ReferenceError); // true + console.log(e.message); // "undefinedVariable is not defined" + console.log(e.name); // "ReferenceError" + console.log(e.fileName); // "Scratchpad/1" + console.log(e.lineNumber); // 2 + console.log(e.columnNumber); // 6 + console.log(e.stack); // "@Scratchpad/2:2:7\n" +} +</pre> + +<h3 id="Example:_Create_an_ReferenceError" name="Example:_Create_an_ReferenceError">例: 创建一个 <code>ReferenceError</code></h3> + +<pre class="brush: js">try { + throw new ReferenceError('Hello', 'someFile.js', 10); +} catch (e) { + console.log(e instanceof ReferenceError); // true + console.log(e.message); // "Hello" + console.log(e.name); // "ReferenceError" + console.log(e.fileName); // "someFile.js" + console.log(e.lineNumber); // 10 + console.log(e.columnNumber); // 0 + console.log(e.stack); // "@Scratchpad/2:2:9\n" +} +</pre> + +<h2 id="规范">规范</h2> + +<table class="standard-table"> + <tbody> + <tr> + <th scope="col">规范</th> + <th scope="col">状态</th> + <th scope="col">说明</th> + </tr> + <tr> + <td>ECMAScript 3rd Edition.</td> + <td>Standard</td> + <td>Initial definition.</td> + </tr> + <tr> + <td>{{SpecName('ES5.1', '#sec-15.11.6.3', 'ReferenceError')}}</td> + <td>{{Spec2('ES5.1')}}</td> + <td> </td> + </tr> + <tr> + <td>{{SpecName('ES6', '#sec-native-error-types-used-in-this-standard-referenceerror', 'ReferenceError')}}</td> + <td>{{Spec2('ES6')}}</td> + <td> </td> + </tr> + </tbody> +</table> + +<h2 id="浏览器兼容性">浏览器兼容性</h2> + +<div>{{CompatibilityTable}}</div> + +<div id="compat-desktop"> +<table class="compat-table"> + <tbody> + <tr> + <th>Feature</th> + <th>Chrome</th> + <th>Firefox (Gecko)</th> + <th>Internet Explorer</th> + <th>Opera</th> + <th>Safari</th> + </tr> + <tr> + <td>Basic support</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + </tr> + </tbody> +</table> +</div> + +<div id="compat-mobile"> +<table class="compat-table"> + <tbody> + <tr> + <th>Feature</th> + <th>Android</th> + <th>Chrome for Android</th> + <th>Firefox Mobile (Gecko)</th> + <th>IE Mobile</th> + <th>Opera Mobile</th> + <th>Safari Mobile</th> + </tr> + <tr> + <td>Basic support</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + </tr> + </tbody> +</table> +</div> + +<h2 id="See_also" name="See_also">相关链接</h2> + +<ul> + <li>{{jsxref("Error")}}</li> + <li>{{jsxref("ReferenceError.prototype")}}</li> +</ul> diff --git a/files/zh-cn/web/javascript/reference/global_objects/referenceerror/prototype/index.html b/files/zh-cn/web/javascript/reference/global_objects/referenceerror/prototype/index.html new file mode 100644 index 0000000000..90f74dc4b1 --- /dev/null +++ b/files/zh-cn/web/javascript/reference/global_objects/referenceerror/prototype/index.html @@ -0,0 +1,92 @@ +--- +title: ReferenceError.prototype +slug: Web/JavaScript/Reference/Global_Objects/ReferenceError/prototype +tags: + - Error + - JavaScript + - Property + - Prototype + - ReferenceError +translation_of: Web/JavaScript/Reference/Global_Objects/ReferenceError +--- +<div>{{JSRef}}</div> + +<p><code><strong>ReferenceError.prototype</strong></code> 表示 {{jsxref("ReferenceError")}} 的原型构造器。</p> + +<div>{{js_property_attributes(0, 0, 0)}}</div> + +<h2 id="描述">描述</h2> + +<p>所有{{jsxref("ReferenceError")}} 实例都继承自 <code>ReferenceError.prototype</code>. 你可以使用原型来为所有实例添加属性和方法。</p> + +<h2 id="属性">属性</h2> + +<dl> + <dt><code>ReferenceError.prototype.constructor</code></dt> + <dd>创建一个实例原型的函数。</dd> + <dt>{{jsxref("Error.prototype.message", "ReferenceError.prototype.message")}}</dt> + <dd>错误信息。尽管ECMA-262 曾表示 {{jsxref("ReferenceError")}} 应该提供自己的 <code>message</code> 属性, 在 <a href="/en-US/docs/Mozilla/Projects/SpiderMonkey">SpiderMonkey</a> 中, 它继承自{{jsxref("Error.prototype.message")}}.</dd> + <dt>{{jsxref("Error.prototype.name", "ReferenceError.prototype.name")}}</dt> + <dd>错误名称. 继承自{{jsxref("Error")}}.</dd> + <dt>{{jsxref("Error.prototype.fileName", "ReferenceError.prototype.fileName")}}</dt> + <dd>出现这个错误的路径. 继承自 {{jsxref("Error")}}.</dd> + <dt>{{jsxref("Error.prototype.lineNumber", "ReferenceError.prototype.lineNumber")}}</dt> + <dd>出现这个错误的行号. 继承自 {{jsxref("Error")}}.</dd> + <dt>{{jsxref("Error.prototype.columnNumber", "ReferenceError.prototype.columnNumber")}}</dt> + <dd>出现这个错误的列号. 继承自 {{jsxref("Error")}}.</dd> + <dt>{{jsxref("Error.prototype.stack", "ReferenceError.prototype.stack")}}</dt> + <dd>堆栈追踪. 继承自 {{jsxref("Error")}}.</dd> +</dl> + +<h2 id="方法">方法</h2> + +<p>尽管 {{jsxref("ReferenceError")}} 原型对象自身没有包括任何方法, {{jsxref("ReferenceError")}} 实例确实从原型链中继承了一些方法。</p> + +<h2 id="规格">规格</h2> + +<table class="standard-table"> + <tbody> + <tr> + <th scope="col">规格版本</th> + <th scope="col">状态</th> + <th scope="col">注释</th> + </tr> + <tr> + <td>{{SpecName('ES3')}}</td> + <td>{{Spec2('ES3')}}</td> + <td>初始定义</td> + </tr> + <tr> + <td>{{SpecName('ES5.1', '#sec-15.11.7.6', 'NativeError.prototype')}}</td> + <td>{{Spec2('ES5.1')}}</td> + <td> + <p>Defined as <code><em>NativeError</em>.prototype</code>.</p> + </td> + </tr> + <tr> + <td>{{SpecName('ES6', '#sec-nativeerror.prototype', 'NativeError.prototype')}}</td> + <td>{{Spec2('ES6')}}</td> + <td>Defined as <code><em>NativeError</em>.prototype</code>.</td> + </tr> + <tr> + <td>{{SpecName('ESDraft', '#sec-nativeerror.prototype', 'NativeError.prototype')}}</td> + <td>{{Spec2('ESDraft')}}</td> + <td>Defined as <code><em>NativeError</em>.prototype</code>.</td> + </tr> + </tbody> +</table> + +<h2 id="浏览器兼容性">浏览器兼容性</h2> + +<div> + + +<p>{{Compat("javascript.builtins.ReferenceError")}}</p> +</div> + +<h2 id="参见">参见</h2> + +<ul> + <li>{{jsxref("Error.prototype")}}</li> + <li>{{jsxref("Function.prototype")}}</li> +</ul> |