Returns a copy of the text of the regular expression pattern. Read-only.

rgExp.source

The rgExp argument is a Regular expression object. It can be a variable name or a literal.

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

Version 3

See Also

Regular Expression Object Methods | Regular Expression Object Properties | Regular Expression Syntax

Applies To: Regular Expression Object