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Prototype truncate() Method
This method truncates a string to the given length and appends a suffix to it (indicating that it is only an excerpt).
If unspecified, the length parameter defaults to 30 and the suffix to "...".
Syntax:
string.truncate([length = 30[, suffix = '...']]) ;
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Return Value:
- Returns a truncated string.
Example:
<html>
<head>
<title>Prototype examples</title>
<script type="text/javascript"
src="/javascript/prototype.js">
</script>
<script>
function showResult(){
var str = 'A random sentence whose length exceeds 30 characters.';
alert("str.truncate() : " + str.truncate() );
alert("str.truncate( 10 ) : " + str.truncate(10) );
alert("str.truncate( 10, '...') : " +
str.truncate(10, '...') );
}
</script>
</head>
<body>
<p>Click the button to see the result.</p>
<br />
<br />
<input type="button" value="Result" onclick="showResult();"/>
</body>
</html>
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To understand it in better way you can Try it yourself.
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