source-property-regular-expression-javascript.md

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source Property (Regular Expression) (JavaScript) | Microsoft Docs		01/18/2017	windows-client-threshold			devlang-javascript		language-reference	source	JavaScript TypeScript DHTML	Source property	d58ac57e-fcde-49d1-bbba-e8c4218448c4	9	mikejo5000	mikejo	ghogen

source Property (Regular Expression) (JavaScript)

Returns a copy of the text of the regular expression pattern. Read-only. The rgExp argument is a Regular expression object. It can be a variable name or a literal.

Syntax

  
rgExp.source  

Example

The following example illustrates the use of the source property:

function SourceDemo(re, s){  
   var s1;  
   // Test string for existence of regular expression.  
   if (re.test(s))  
      s1 = " contains ";  
   else  
      s1 = " does not contain ";  
   // Get the text of the regular expression itself.  
   return(s + s1 + re.source);  
}  

Requirements

[!INCLUDEjsv3]

Applies To: Regular Expression Object

See Also

Regular Expression Object
Regular Expression Object
Regular Expression Syntax (JavaScript)