JAVASCRIPT

JAVASCRIPT lastIndexOf() METHOD

The lastIndexOf() method returns the position of the last occurrence of a specified search string or search character to look for in a string. The lastIndexOf() method is case sensitive.

The lastIndexOf() method takes the string or character to search for as a compulsory argument and an optional to start from argument (counted backwards). Always remember that the first position always starts at 0 (and not 1). The lastIndexOf() method returns a -1 if no occurrences are found.

The general format is:

string.lastIndexOf(tosearchfor, tostartfrom[optional]);

Example Without The Optional tostartfrom Argument:

<script type="text/javascript">

var string="The brown box";

document.write(string.lastIndexOf("b"));

</script>

The above will output:



Example With The Optional tostartfrom Argument:

<script type="text/javascript">

var string="The brown box";

document.write(string.lastIndexOf("r", 5));

</script>

The above will output:



Example With No Match:

<script type="text/javascript">

var string="The brown box";

document.write(string.lastIndexOf("f"));

</script>

The above will output:



See Also:

anchor()	big()
blink()	bold()
charAt()	charCodeAt()
concat()	fixed()
fontcolor()	fontsize()
fromCharCode()	indexOf ()
italics ()	lastIndexOf()
link()	match()
replace ()	search()
slice()	small()
split()	strike()
sub()	substr()
substring()	sup()
toLowerCase()	toUpperCase()
toSource()	valueOf ()

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