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<article id="wikiArticle">
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<div></div>
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<div><code><strong>WebAssembly.LinkError()</strong></code> 构造器创建一个新的WebAssembly <code>LinkError</code> 对象, 该对象表明一个模块创建时(besides <a class="external" href="http://webassembly.org/docs/semantics/#traps" rel="noopener">traps</a> from the start function)发生的错误.</div>
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<p> </p>
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<h2 id="句法">句法</h2>
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<pre><code class="language-javascript">new WebAssembly.LinkError(<var>message</var>, <var>fileName</var>, <var>lineNumber</var>)</code></pre>
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<h3 id="Parameters">Parameters</h3>
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<dl>
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<dt><code>message</code> <span class="inlineIndicator optional optionalInline">可选</span></dt>
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<dd>自然语言对错误的描述.</dd>
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<dt><code>fileName</code> <span class="inlineIndicator optional optionalInline">可选</span><span class="icon-only-inline" title="This API has not been standardized."><i class="icon-warning-sign"> </i></span></dt>
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<dd>包含抛出异常代码的代码文件名.</dd>
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<dt><code>lineNumber</code> <span class="inlineIndicator optional optionalInline">可选</span><span class="icon-only-inline" title="This API has not been standardized."><i class="icon-warning-sign"> </i></span></dt>
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<dd>抛出异常的代码行号.</dd>
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</dl>
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<h2 id="Properties">Properties</h2>
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<p><em><code>LinkError</code> 不包含自己独立的属性, 它仅仅继承了原型链上的属性.</em></p>
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<dl>
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<dt><code>WebAssembly.LinkError.prototype.constructor</code></dt>
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<dd>指明创建该实体的构造函数.</dd>
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<dt><a href="Reference/Global_Objects/Error/message" title="message 属性是有关错误信息，人类易读的（human-readable）描述。"><code>WebAssembly.LinkError.prototype.message</code></a></dt>
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<dd>Error message. Although ECMA-262 specifies that <a href="Reference/Global_Objects/URIError" title="URIError 对象用来表示以一种错误的方式使用全局URI处理函数而产生的错误。"><code>URIError</code></a> should provide its own <code>message</code> property, in <a href="/en-US/docs/Mozilla/Projects/SpiderMonkey">SpiderMonkey</a>, it inherits <a href="Reference/Global_Objects/Error/message" title="message 属性是有关错误信息，人类易读的（human-readable）描述。"><code>Error.prototype.message</code></a>.</dd>
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<dt><a href="Reference/Global_Objects/Error/name" title='name 属性表示error类型的名称.初始值为"Error".'><code>WebAssembly.LinkError.prototype.name</code></a></dt>
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<dd>Error name. Inherited from <a href="Reference/Global_Objects/Error" title="通过Error的构造器可以创建一个错误对象。当运行时错误产生时，Error的实例对象会被抛出。Error对象也可用于用户自定义的异常的基础对象。下面列出了各种内建的标准错误类型。"><code>Error</code></a>.</dd>
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<dt><a href="Reference/Global_Objects/Error/fileName" title="fileName 属性包含引发此错误的文件的路径."><code>WebAssembly.LinkError.prototype.fileName</code></a></dt>
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<dd>Path to file that raised this error. Inherited from <a href="Reference/Global_Objects/Error" title="通过Error的构造器可以创建一个错误对象。当运行时错误产生时，Error的实例对象会被抛出。Error对象也可用于用户自定义的异常的基础对象。下面列出了各种内建的标准错误类型。"><code>Error</code></a>.</dd>
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<dt><a href="Reference/Global_Objects/Error/lineNumber" title="lineNumber 属性的值为抛出错误的代码在其源文件中所在的行号。"><code>WebAssembly.LinkError.prototype.lineNumber</code></a></dt>
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<dd>Line number in file that raised this error. Inherited from <a href="Reference/Global_Objects/Error" title="通过Error的构造器可以创建一个错误对象。当运行时错误产生时，Error的实例对象会被抛出。Error对象也可用于用户自定义的异常的基础对象。下面列出了各种内建的标准错误类型。"><code>Error</code></a>.</dd>
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<dt><a href="Reference/Global_Objects/Error/columnNumber" title="columnNumber属性包含引发此错误的文件行中的列号。"><code>WebAssembly.LinkError.prototype.columnNumber</code></a></dt>
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<dd>Column number in line that raised this error. Inherited from <a href="Reference/Global_Objects/Error" title="通过Error的构造器可以创建一个错误对象。当运行时错误产生时，Error的实例对象会被抛出。Error对象也可用于用户自定义的异常的基础对象。下面列出了各种内建的标准错误类型。"><code>Error</code></a>.</dd>
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<dt><a href="Reference/Global_Objects/Error/stack" title="Error对象作为一个非标准的栈属性提供了一种函数追踪方式。无论这个函数被被调用，处于什么模式，来自于哪一行或者哪个文件，有着什么样的参数。这个栈产生于最近一次调用最早的那次调用，返回原始的全局作用域调用"><code>WebAssembly.LinkError.prototype.stack</code></a></dt>
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<dd>Stack trace. Inherited from <a href="Reference/Global_Objects/Error" title="通过Error的构造器可以创建一个错误对象。当运行时错误产生时，Error的实例对象会被抛出。Error对象也可用于用户自定义的异常的基础对象。下面列出了各种内建的标准错误类型。"><code>Error</code></a>.</dd>
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</dl>
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<h2 id="Methods">Methods</h2>
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<p><em>The <code>LinkError</code> constructor contains no methods of its own, however, it does inherit some methods through the prototype chain.</em></p>
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<dl>
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<dt><a href="Reference/Global_Objects/Error/toSource" title="toSource() 方法返回可以计算出到相同错误的代码。"><code>WebAssembly.LinkError.prototype.toSource()</code></a></dt>
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<dd>返回可以执行并得到与该错误对象相同的源代码.</dd>
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<dt><a href="Reference/Global_Objects/Error/toString" title="toString() 方法返回一个指定的错误对象（Error object）的字符串表示。"><code>WebAssembly.LinkError.prototype.toString()</code></a></dt>
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<dd>返回一个可以说明该 <code>Error</code> 对象的文字. 继承自 <a href="Reference/Global_Objects/Error" title="通过Error的构造器可以创建一个错误对象。当运行时错误产生时，Error的实例对象会被抛出。Error对象也可用于用户自定义的异常的基础对象。下面列出了各种内建的标准错误类型。"><code>Error</code></a>.</dd>
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</dl>
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<h2 id="Examples">Examples</h2>
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<p>下列代码片段创建了一个新的 <code>LinkError</code> 实例, 并将其打印到控制台:</p>
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<pre><code class="language-javascript">try {
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throw new WebAssembly.LinkError('Hello', 'someFile', 10);
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} catch (e) {
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console.log(e instanceof LinkError); // true
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console.log(e.message); // "Hello"
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console.log(e.name); // "LinkError"
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console.log(e.fileName); // "someFile"
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console.log(e.lineNumber); // 10
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console.log(e.columnNumber); // 0
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console.log(e.stack); // returns the location where the code was run
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}</code></pre>
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<h2 id="Specifications">Specifications</h2>
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<table class="standard-table">
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<thead>
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<tr>
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<th scope="col">Specification</th>
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<th scope="col">Status</th>
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<th scope="col">Comment</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><a class="external" href="https://webassembly.github.io/spec/js-api/#constructor-properties-of-the-webassembly-object" hreflang="en" lang="en" rel="noopener">WebAssembly JavaScript Interface<br/><small lang="zh-CN">WebAssembly constructors</small></a></td>
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<td><span class="spec-WD">Working Draft</span></td>
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<td>Initial WebAssembly draft definition.</td>
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</tr>
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<tr>
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<td><a class="external" href="https://tc39.github.io/ecma262/#sec-native-error-types-used-in-this-standard" hreflang="en" lang="en" rel="noopener">ECMAScript Latest Draft (ECMA-262)<br/><small lang="zh-CN">NativeError</small></a></td>
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<td><span class="spec-Draft">Draft</span></td>
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<td>Definition of standard NativeError types.</td>
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</tr>
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</tbody>
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</table>
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<h2 id="Browser_compatibility" name="Browser_compatibility">Browser compatibility</h2>
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<div>
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<div class="hidden">The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out <a class="external" href="https://github.com/mdn/browser-compat-data" rel="noopener">https://github.com/mdn/browser-compat-data</a> and send us a pull request.</div>
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<p></p><div class="bc-data"><a class="bc-github-link external" href="https://github.com/mdn/browser-compat-data" rel="noopener">Update compatibility data on GitHub</a><table class="bc-table bc-table-js"><thead><tr class="bc-platforms"><td></td><th class="bc-platform-desktop" colspan="6"><span>Desktop</span></th><th class="bc-platform-mobile" colspan="7"><span>Mobile</span></th><th class="bc-platform-server" colspan="1"><span>Server</span></th></tr><tr class="bc-browsers"><td></td><th class="bc-browser-chrome"><span class="bc-head-txt-label bc-head-icon-chrome">Chrome</span></th><th class="bc-browser-edge"><span class="bc-head-txt-label bc-head-icon-edge">Edge</span></th><th class="bc-browser-firefox"><span class="bc-head-txt-label bc-head-icon-firefox">Firefox</span></th><th class="bc-browser-ie"><span class="bc-head-txt-label bc-head-icon-ie">Internet Explorer</span></th><th class="bc-browser-opera"><span class="bc-head-txt-label bc-head-icon-opera">Opera</span></th><th class="bc-browser-safari"><span class="bc-head-txt-label bc-head-icon-safari">Safari</span></th><th class="bc-browser-webview_android"><span class="bc-head-txt-label bc-head-icon-webview_android">Android webview</span></th><th class="bc-browser-chrome_android"><span class="bc-head-txt-label bc-head-icon-chrome_android">Chrome for Android</span></th><th class="bc-browser-edge_mobile"><span class="bc-head-txt-label bc-head-icon-edge_mobile">Edge Mobile</span></th><th class="bc-browser-firefox_android"><span class="bc-head-txt-label bc-head-icon-firefox_android">Firefox for Android</span></th><th class="bc-browser-opera_android"><span class="bc-head-txt-label bc-head-icon-opera_android">Opera for Android</span></th><th class="bc-browser-safari_ios"><span class="bc-head-txt-label bc-head-icon-safari_ios">Safari on iOS</span></th><th class="bc-browser-samsunginternet_android"><span class="bc-head-txt-label bc-head-icon-samsunginternet_android">Samsung Internet</span></th><th class="bc-browser-nodejs"><span class="bc-head-txt-label bc-head-icon-nodejs">Node.js</span></th></tr></thead><tbody><tr><th scope="row"><code>LinkError</code></th><td class="bc-supports-yes bc-browser-chrome"><span class="bc-browser-name">Chrome</span><abbr class="bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr>
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57</td><td class="bc-supports-yes bc-browser-edge"><span class="bc-browser-name">Edge</span><abbr class="bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr>
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16</td><td class="bc-supports-yes bc-browser-firefox bc-has-history"><span class="bc-browser-name">Firefox</span><abbr class="bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr>
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52<div class="bc-icons"><abbr class="only-icon" title="See implementation notes"><span>Notes</span><i class="ic-footnote"></i></abbr> </div><section class="bc-history" id="sect1"><dl><dt class="bc-supports-yes bc-supports"><abbr class="bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr>
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52<div class="bc-icons"><abbr class="only-icon" title="See implementation notes"><span>Notes</span><i class="ic-footnote"></i></abbr> </div></dt><dd><abbr class="only-icon" title="See implementation notes"><span>Notes</span><i class="ic-footnote"></i></abbr> Disabled in the Firefox 52 Extended Support Release (ESR).</dd></dl></section></td><td class="bc-supports-no bc-browser-ie"><span class="bc-browser-name">IE</span><abbr class="bc-level-no only-icon" title="No support">
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<span>No support</span>
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</abbr>
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No</td><td class="bc-supports-yes bc-browser-opera"><span class="bc-browser-name">Opera</span><abbr class="bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr>
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44</td><td class="bc-supports-yes bc-browser-safari"><span class="bc-browser-name">Safari</span><abbr class="bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr>
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11</td><td class="bc-supports-yes bc-browser-webview_android"><span class="bc-browser-name">WebView Android</span><abbr class="bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr>
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57</td><td class="bc-supports-yes bc-browser-chrome_android"><span class="bc-browser-name">Chrome Android</span><abbr class="bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr>
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57</td><td class="bc-supports-yes bc-browser-edge_mobile bc-has-history"><span class="bc-browser-name">Edge Mobile</span><abbr class="bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr>
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Yes<div class="bc-icons"><abbr class="only-icon" title="User must explicitly enable this feature."><span>Disabled</span><i class="ic-disabled"></i></abbr> </div><section class="bc-history" id="sect2"><dl><dt class="bc-supports-yes bc-supports"><abbr class="bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr>
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Yes<div class="bc-icons"><abbr class="only-icon" title="User must explicitly enable this feature."><span>Disabled</span><i class="ic-disabled"></i></abbr> </div></dt><dd><abbr class="only-icon" title="User must explicitly enable this feature."><span>Disabled</span><i class="ic-disabled"></i></abbr> This feature is behind the <code>Experimental JavaScript Features</code> preference.</dd></dl></section></td><td class="bc-supports-yes bc-browser-firefox_android bc-has-history"><span class="bc-browser-name">Firefox Android</span><abbr class="bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr>
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52<div class="bc-icons"><abbr class="only-icon" title="See implementation notes"><span>Notes</span><i class="ic-footnote"></i></abbr> </div><section class="bc-history" id="sect3"><dl><dt class="bc-supports-yes bc-supports"><abbr class="bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr>
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52<div class="bc-icons"><abbr class="only-icon" title="See implementation notes"><span>Notes</span><i class="ic-footnote"></i></abbr> </div></dt><dd><abbr class="only-icon" title="See implementation notes"><span>Notes</span><i class="ic-footnote"></i></abbr> Disabled in the Firefox 52 Extended Support Release (ESR).</dd></dl></section></td><td class="bc-supports-unknown bc-browser-opera_android"><span class="bc-browser-name">Opera Android</span><abbr title="Compatibility unknown; please update this.">
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?
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</abbr></td><td class="bc-supports-yes bc-browser-safari_ios"><span class="bc-browser-name">Safari iOS</span><abbr class="bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr>
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11</td><td class="bc-supports-yes bc-browser-samsunginternet_android"><span class="bc-browser-name">Samsung Internet Android</span><abbr class="bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr>
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7.0</td><td class="bc-supports-yes bc-browser-nodejs"><span class="bc-browser-name">nodejs</span><abbr class="bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr>
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8.0.0</td></tr></tbody></table><section class="bc-legend" id="sect4"><h3 class="offscreen" id="Legend">Legend</h3><dl><dt><span class="bc-supports-yes bc-supports">
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<abbr class="bc-level bc-level-yes only-icon" title="Full support">
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<span>Full support</span>
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</abbr></span></dt><dd>Full support</dd><dt><span class="bc-supports-no bc-supports">
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<abbr class="bc-level bc-level-no only-icon" title="No support">
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<span>No support</span>
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</abbr></span></dt><dd>No support</dd><dt><span class="bc-supports-unknown bc-supports">
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<abbr class="bc-level bc-level-unknown only-icon" title="Compatibility unknown">
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<span>Compatibility unknown</span>
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</abbr></span></dt><dd>Compatibility unknown</dd><dt><abbr class="only-icon" title="See implementation notes."><span>See implementation notes.</span><i class="ic-footnote"></i></abbr></dt><dd>See implementation notes.</dd><dt><abbr class="only-icon" title="User must explicitly enable this feature."><span>User must explicitly enable this feature.</span><i class="ic-disabled"></i></abbr></dt><dd>User must explicitly enable this feature.</dd></dl></section></div><p></p>
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</div>
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<h2 id="See_also">See also</h2>
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<ul>
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<li><a href="/en-US/docs/WebAssembly">WebAssembly</a> overview page</li>
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<li><a href="/en-US/docs/WebAssembly/Concepts">WebAssembly concepts</a></li>
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<li><a href="/en-US/docs/WebAssembly/Using_the_JavaScript_API">Using the WebAssembly JavaScript API</a></li>
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</ul>
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</article> |