In this article we will discuss to how to use substr() method. It has two parameter start and count. Start is required parameter and it specifies where the position should to start. End is optional parameter it specifies the number of characters to extract. If the count parameter is not specified, it takes the all characters till end of the string. If the count is zero or negative then it will return empty.
<script type="text/javascript">
var mystring = "chiptrolls.comprovides you currency convertor";
var result = mystring.substr(0, 13);
alert(result);
</script>
Output:
Without specified the count parameter in substr() method.
<script type="text/javascript">
var mystring = "chiptrolls.comprovides you currency convertor";
var result = mystring.substr(14);
alert(result);
</script>
Output:
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