how to get index of a string from a list?

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I have a list like

_Value1 = "'apple','ball','cat'....so on";

If I know that apple exists in above list.How to get index of whole string from the list.Like apple should have the index 1, ball should have 2 and so on.

What is the javascript code for this stuff?

Posted 25-Aug-11 2:38am

123arvind123

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2 solutions

Solution 1

Do you mean indexOf?
e.g.

JavaScript

var array = ["foo","boo", "goo"];
var booIndex = array.indexOf("boo")

Note IE (at least IE7) doesn't support it.

Posted 25-Aug-11 2:55am

CPallini

Updated 25-Aug-11 2:56am

v2

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123arvind123 26-Aug-11 0:59am

thanks for your reply but I am not using array...well I will go with what Niral suggest..but I appreciate your reply..

CPallini 26-Aug-11 2:50am

You are welcome.

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Niral Soni · Accepted Answer · 2011-08-25T13:06:00

Hope this may help you out...

JavaScript

var str = "a,b,c,d,e,f,g";

function getIndexOf(srcString, searchString) {
	var str2Array = srcString.split(',');
	var array2Index = [];
	for(var i = 0; i < str2Array.length; i++) {
		array2Index[str2Array[i]] = i;
	}
	return (typeof array2Index[searchString] != 'undefined' ? array2Index[searchString] : -1);
}

alert(getIndexOf(str,'a'));
alert(getIndexOf(str,'d'));
alert(getIndexOf(str,'g'));
alert(getIndexOf(str,'not found'));

Thanks & Regards,
Niral Soni