删除数组中特定值算法挑战

function bouncer(arr) {
    // Don't show a false ID to this bouncer.
    var array = [];
    for(var i = 0; i < arr.length; i ++){
        if(arr[i]){
            array.push(arr[i]);
        }
    }
    return array;
}


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