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Revision 613135 of ReferenceError

  • Revision slug: Web/JavaScript/Reference/Global_Objects/ReferenceError
  • Revision title: ReferenceError
  • Revision id: 613135
  • Created:
  • Creator: fscholz
  • Is current revision? No
  • Comment

Revision Content

{{JSRef("Global_Objects", "Error", "EvalError,InternalError,RangeError,ReferenceError,SyntaxError,TypeError,URIError")}}

Summary

The ReferenceError object represents an error when a non-existent variable is referenced.

Description

A ReferenceError is thrown when trying to dereference a variable that has not been declared.

Syntax

new ReferenceError([message[, fileName[, linenumber]]])

Parameters

message
Human-readable description of the error
fileName {{Non-standard_inline}}
The name of the file containing the code that caused the exception
lineNumber {{Non-standard_inline}}
The line number of the code that caused the exception

Properties

{{jsxref("ReferenceError.prototype")}}
Allows the addition of properties to an ReferenceError object.

Methods

The global ReferenceError contains no methods of its own, however, it does inherit some methods through the prototype chain.

ReferenceError instances

Properties

{{page('en-US/Web/JavaScript/Reference/Global_Objects/ReferenceError/prototype','Properties')}}

Methods

{{page('en-US/Web/JavaScript/Reference/Global_Objects/ReferenceError/prototype','Methods')}}

Specifications

Specification Status Comment
ECMAScript 3rd Edition. Standard Initial definition.
{{SpecName('ES5.1', '#sec-15.11.6.3', 'ReferenceError')}} {{Spec2('ES5.1')}}  
{{SpecName('ES6', '#sec-native-error-types-used-in-this-standard-referenceerror', 'ReferenceError')}} {{Spec2('ES6')}}  

Browser compatibility

{{ CompatibilityTable() }}

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support {{ CompatVersionUnknown() }} {{ CompatVersionUnknown() }} {{ CompatVersionUnknown() }} {{ CompatVersionUnknown() }} {{ CompatVersionUnknown() }}
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support {{ CompatVersionUnknown() }} {{ CompatVersionUnknown() }} {{ CompatVersionUnknown() }} {{ CompatVersionUnknown() }} {{ CompatVersionUnknown() }} {{ CompatVersionUnknown() }}

See also

  • {{jsxref("Error")}}
  • {{jsxref("ReferenceError.prototype")}}

Revision Source

<div>
 {{JSRef("Global_Objects", "Error", "EvalError,InternalError,RangeError,ReferenceError,SyntaxError,TypeError,URIError")}}</div>
<h2 id="Summary" name="Summary">Summary</h2>
<p>The <code><strong>ReferenceError</strong></code> object represents an error when a non-existent variable is referenced.</p>
<h2 id="Description" name="Description">Description</h2>
<p>A <code>ReferenceError</code> is thrown when trying to dereference a variable that has not been declared.</p>
<h2 id="Syntax" name="Syntax">Syntax</h2>
<pre class="syntaxbox">
new ReferenceError(<var>[message[, fileName[, linenumber]]]</var>)</pre>
<h3 id="Parameters" name="Parameters">Parameters</h3>
<dl>
 <dt>
  <code>message</code></dt>
 <dd>
  Human-readable description of the error</dd>
 <dt>
  <code>fileName</code> {{Non-standard_inline}}</dt>
 <dd>
  The name of the file containing the code that caused the exception</dd>
 <dt>
  <code>lineNumber</code> {{Non-standard_inline}}</dt>
 <dd>
  The line number of the code that caused the exception</dd>
</dl>
<h2 id="Properties" name="Properties">Properties</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">Methods</h2>
<p>The global <code>ReferenceError</code> contains no methods of its own, however, it does inherit some methods through the prototype chain.</p>
<h2 id="ReferenceError_instances" name="ReferenceError_instances"><code>ReferenceError</code> instances</h2>
<h3 id="Properties_2" name="Properties_2">Properties</h3>
<div>
 {{page('en-US/Web/JavaScript/Reference/Global_Objects/ReferenceError/prototype','Properties')}}</div>
<h3 id="Methods_2" name="Methods_2">Methods</h3>
<div>
 {{page('en-US/Web/JavaScript/Reference/Global_Objects/ReferenceError/prototype','Methods')}}</div>
<h2 id="Specifications">Specifications</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>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>&nbsp;</td>
  </tr>
  <tr>
   <td>{{SpecName('ES6', '#sec-native-error-types-used-in-this-standard-referenceerror', 'ReferenceError')}}</td>
   <td>{{Spec2('ES6')}}</td>
   <td>&nbsp;</td>
  </tr>
 </tbody>
</table>
<h2 id="Browser_compatibility">Browser compatibility</h2>
<p>{{ CompatibilityTable() }}</p>
<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">See also</h2>
<ul>
 <li>{{jsxref("Error")}}</li>
 <li>{{jsxref("ReferenceError.prototype")}}</li>
</ul>
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