We would like to know how to get Amount of same strings in two arrays.
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'>
var arr1 = ["how", "are", "you"],
arr2 = ["how", "is", "it", "going"],
count = 0;<!-- w w w. j a v a 2s .c o m-->
var count = 0;
arr1.forEach(function (elem) {
if (arr2.indexOf(elem) !== -1) {
count++;
}
});
document.writeln(count);
</script>
</head>
<body>
</body>
</html>
The code above is rendered as follows: