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jQuery Checkbox :checked Selector: Travers the selected checkboxes
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>checked demo</title>
<style>
div {
color: red;
}
</style>
<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
<form>
<p>
<input type="checkbox" name="newsletter" value="Hourly" checked="checked">
<input type="checkbox" name="newsletter" value="Daily">
<input type="checkbox" name="newsletter" value="Weekly">
<input type="checkbox" name="newsletter" value="Monthly" checked>
<input type="checkbox" name="newsletter" value="Yearly">
</p>
</form>
<div id="count"></div>
<div id="log"></div>
<script>
var countChecked = function() {
var n = $( "input:checked" ).length;
$( "#count" ).text( n + (n === 1 ? " is" : " are") + " checked!" );
var sList = "";
$("input:checked").each(function() {
sList += "(" + $(this).val() + "-" + (this.checked ? "checked" : "not checked") + ")";
});
$( "#log" ).html(sList);
};
countChecked();
$( "input[type=checkbox]" ).on( "click", countChecked );
</script>
</body>
</html>
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