This sample code allows you to filter and remove elements in an array. Here function $.grep() is used to filter elements.
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script type='text/javascript'>
(function($) {
$(document).ready(function() {
var months = [ 'January', 'February', 'March', 'April', 'May',
'June', 'July', 'August', 'September', 'October',
'November', 'December'];
months = $.grep(months, function(value, i) {
return ( value.indexOf('M') == 0 );
});
$('#output').html( '<li>' + months.join('</li><li>') + '</li>' );
});
})(jQuery);
</script>
<div id='output'></div>