JSTL startsWith Function returns true or false based on condition evaluation. The fn:startsWith() function determines whether an input string starts with a specified substring.
Syntax:
The fn:startsWith() function has following syntax:
boolean startsWith(java.lang.String, java.lang.String)
JST StartsWith Function Example-
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>JSTL StartsWith Function Example</title>
</head>
<body>
<c:set var="array1" value="${fn:startsWith('Hi My name is Dinesh', 'Hi ')}">
</body>
</html>
Output: true
As you can see above, fn:startsWith() takes two Strings as input parameters.
First parameter in JSTL startsWith function is the target String which needs to be validated.
Second parameter in JSTL startsWith function is the specified string that needs to be matched with starting character sequence of the target string.
If target string starts with same character sequence like the specified string than JSTL startsWith function returns true otherwise returns false.
