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Possible Duplicate:
Javascript indexOf case insensitive
how to use IndexOf in javascript to search a key in a string without taking in mind if the key is in lower case or upper case
<script type="text/javascript">
var s = "hello world";
var key="HELLO";
// the alert should say found if key is lower case or upper case
if(s.indexof(key)>1) alert("found")
</script>
Is their any function in javascript that can check if the key is lower or upper case
Convert both
sandkeyto lower case using.toLowerCase()before usingindexOf()