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How to count certain elements in array?

Leem Published at Javascript
41
Leem :

I have an array:

[1, 2, 3, 5, 2, 8, 9, 2]

I would like to know how many 2s are in the array.

What is the most elegant way to do it in JavaScript without looping with for loop?

Thor Jacobsen :

Very simple:

var count = 0;
for(var i = 0; i < array.length; ++i){
    if(array[i] == 2)
        count++;
}

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