Microsoft® JScript™ test Method | Language Reference Version 3

See Also Applies To

##### Description

> Tests whether a pattern exists in a string.

##### Syntax

> rgexp.test(str)

> The test method syntax has these parts:

> Part | Description
> rgexp | Required. A Regular Expression object. Can be a variable name or a literal.
> str | Required. The string to test a search on.

##### Remarks

> The test method checks to see if a pattern exists within a string and returns true if so, and false otherwise.

> The RegExp object is not modified by the test method.

> The following example illustrates the use of the test method:

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

© 1998 Microsoft Corporation. All rights reserved. Terms of Use.