JavaScript Reference/Javascript Methods/indexOf
"indexOf()" Example
<html>
<body>
<button onclick="var myS = new String("Sample String");
alert(myS.indexOf("String"));">
call string indexOf method
</button>
</body>
</html>
"indexOf()" is applied to
+----------------+--------------------------------------------------------------+
| Applied_To |String |
+----------------+--------------------------------------------------------------+
"indexOf()" Syntax, Parameters and Note
Note:
This method performs a search for the specified string and
returns the character number in the string at which the
match starts.
If no match is found, it returns -1.
Syntax:
stringName.indexOf(param1, param2)
Parameters:
param1 Required; the string to search for.
param2 Optional; the character number in the string at which to start the search.