With the help of inArray function you can check value exists in array or not.
$.inArray function return the index of element. If element not exist in array it will return -1. So, we can check it very simply weather a value exist in array or not. Please see given example.
$.inArray function return the index of element. If element not exist in array it will return -1. So, we can check it very simply weather a value exist in array or not. Please see given example.
CODE
<!DOCTYPE html>
<html>
<head>
<title>jQuery With Example</title>
<script src="http://code.jquery.com/jquery-1.9.1.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$('.btnClick').click(function () {
var country = [];
country.push('Japan');
country.push('England');
country.push('India');
alert($.inArray('India', country));
alert($.inArray('Pakistan', country));
if ($.inArray('Pakistan', country) < 0) {
alert('Pakistan not found');
}
else {
alert('Pakistan found');
}
});
});
</script>
</head>
<body>
<div>
<input type="button" class="btnClick" value="Click" />
</div>
</body>
</html>
DISPLAY
The return value for $.inArray if the condition is false is '-1'. So the Condition should be
ReplyDeleteif ($.inArray('Pakistan', country) <= 0)
Thanks to read this blog.
DeleteBut if ($.inArray('Pakistan', country) <= 0) will not work if this country at 0 position. Because array index start from 0.
So, condition must be if ($.inArray('Pakistan', country) < 0)
or if ($.inArray('Pakistan', country) == -1)
!!!
ReplyDelete