Is there any way to count the number of occurrences in a jQuery array?

Question

I have an array that I put together in jQuery and I\'m wondering if there is a way that I could find the number of occurrences of a given term. Would I have better results i

Answer 1

If you have an array like this:

var arr = [1, 2, 3, 4, 3, 2, 1];

And set your target value:

var target = 1;

Then you can find the number of occurences of target using:

var numOccurences = $.grep(arr, function (elem) {
    return elem === target;
}).length; // Returns 2