Remove all falsy values from an array

Question

I would like to remove all falsy values from an array. Falsy values in JavaScript are false, null, 0, \"\", undefined, and NaN.

Answer 1

I think a better deal this way

   function bouncer(arr) {
        arr = arr.filter(function(item) {
            return item;
        return arr;

    bouncer([7, "ate", "", false, 9, NaN, undefined, 0]);