--- title: SyntaxError slug: Web/JavaScript/Reference/Global_Objects/SyntaxError tags: - Error - JavaScript - Object - SyntaxError translation_of: Web/JavaScript/Reference/Global_Objects/SyntaxError --- <div>{{JSRef}}</div> <p><code><strong>SyntaxError</strong></code> 对象代表尝试解析语法上不合法的代码的错误。</p> <h2 id="Description" name="Description">描述</h2> <p>当Javascript语言解析代码时,Javascript引擎发现了不符合语法规范的tokens或token顺序时抛出<code>SyntaxError</code>.</p> <h2 id="Syntax" name="Syntax">语法</h2> <pre class="syntaxbox"><code>new SyntaxError([<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>可选的. 可阅读的错误描述信息</dd> <dt><code>fileName</code> {{non-standard_inline}}</dt> <dd>可选的. 包含引发异常的代码的文件名</dd> <dt><code>lineNumber</code> {{non-standard_inline}}</dt> <dd><span style="line-height: 19.0909080505371px;">可选的</span>. <span style="line-height: 19.0909080505371px;">包含引发异常的代码</span><span style="line-height: 19.0909080505371px;">的行号</span></dd> </dl> <h2 id="Properties" name="Properties">属性</h2> <dl> <dt>{{jsxref("SyntaxError.prototype")}}</dt> <dd><code><font face="Open Sans, sans-serif">允许</font>SyntaxError</code>对象添加属性.</dd> </dl> <h2 id="Methods" name="Methods">方法</h2> <p>全局 <code>SyntaxError</code> 自身不包含任何方法, 但从原型链中继承了一些方法.</p> <h2 id="SyntaxError_instances" name="SyntaxError_instances"><code>SyntaxError</code> 实例</h2> <h3 id="Properties_of_SyntaxError_instances" name="Properties_of_SyntaxError_instances">属性</h3> <div>{{page('/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/SyntaxError/prototype', '属性')}}</div> <h3 id="Methods_of_SyntaxError_instances" name="Methods_of_SyntaxError_instances">方法</h3> <div>{{page('/<span style="line-height: 19.0909080505371px;">zh-CN</span>/docs/Web/JavaScript/Reference/Global_Objects/SyntaxError/prototype', '方法')}}</div> <h2 id="Examples" name="Examples">示例</h2> <h3 id="Example:_Catch_an_SyntaxError" name="Example:_Catch_an_SyntaxError">捕获 <code>SyntaxError</code></h3> <pre class="brush: js">try { eval('hoo bar'); } catch (e) { console.log(e instanceof SyntaxError); // true console.log(e.message); // "missing ; before statement" console.log(e.name); // "SyntaxError" console.log(e.fileName); // "Scratchpad/1" console.log(e.lineNumber); // 1 console.log(e.columnNumber); // 4 console.log(e.stack); // "@Scratchpad/1:2:3\n" } </pre> <h3 id="Example:_Create_an_SyntaxError" name="Example:_Create_an_SyntaxError">创建 <code>SyntaxError</code></h3> <pre class="brush: js">try { throw new SyntaxError('Hello', 'someFile.js', 10); } catch (e) { console.log(e instanceof SyntaxError); // true console.log(e.message); // "Hello" console.log(e.name); // "SyntaxError" console.log(e.fileName); // "someFile.js" console.log(e.lineNumber); // 10 console.log(e.columnNumber); // 0 console.log(e.stack); // "@Scratchpad/2:11:9\n" } </pre> <h2 id="规范">规范</h2> <table class="standard-table"> <tbody> <tr> <th scope="col">Specification</th> <th scope="col">Status</th> <th scope="col">Comment</th> </tr> <tr> <td>{{SpecName('ES3')}}</td> <td>{{Spec2('ES3')}}</td> <td>Initial definition.</td> </tr> <tr> <td>{{SpecName('ES5.1', '#sec-15.11.6.4', 'SyntaxError')}}</td> <td>{{Spec2('ES5.1')}}</td> <td> </td> </tr> <tr> <td>{{SpecName('ES6', '#sec-native-error-types-used-in-this-standard-syntaxerror', 'SyntaxError')}}</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="相关链接">相关链接</h2> <ul> <li>{{jsxref("Error")}}</li> <li>{{jsxref("SyntaxError.prototype")}}</li> </ul>