Substring operations are very common and useful for string manipulations. JavaScript also supports this operation by two methods:
substring()
substr()
Lets discuss both of them.
substr(5,8) function start counting string from 0 and find the 5th count of string character and calculate till length of 8 characters.
0-T 1-h 2-i 3-s 4- 5-S 6-u 7-b 8-s 9-t 10-r 11-i 12-n 13-g manipulation is brought you by CsharpTalk.com
as given in above example the substring result start with 5-S and end at 5+8 length=12-n.
Now lets discuss substring(5,8)
substring(5,8) function starts with 5th character and end before 8th character
0-T 1-h 2-i 3-s 4- 5-S 6-u 7-b 8-s 9-t 10-r 11-i 12-n 13-g manipulation is brought you by CsharpTalk.com
So as in above example the result of this operation will be 5-S to 7th character.
<html>
<body>
<script type="text/javascript">
var str= "This Substring manipulation is brought you by CsharpTalk.com"
document.write(str.substr(5,8))
document.write("<br /><br />")
document.write(str.substring(5,8))
</script>
<p>
Example of substr() and substring() of JavaScript.
</p>
</body>
</html>
Output of given program:
Output of str.substr(5,8)
Substrin
Output of str.substring(5,8)
Sub
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