JavaScript Test () method

JavaScript Test () method

JavaScript REGEXP Objects

Definition and usage

The test () method is used to detect whether a string matches a pattern.

Grammar

Regexpobject.test (String)

Parameters	Description
String	Necessary. The string to detect.

return value

Returns True if the string contains text that matches regexpobject, otherwise false.

Description

Call the test () method of the RegExp object R and pass the string s to it, which is equivalent to this expression: (R.exec (s)! = null).

Instance

In the following example, we will retrieve "W3school":

<script type= "Text/javascript" >var str = "Visit w3school"; var patt1 = new RegExp ("W3school"); var result = Patt1.test (str);d ocument.write ("Result:" + result);</script>

Output:

Result:true

Tiy

Test ()

How to use Test () to retrieve a string.

JavaScript Test () method