function arrHasValue(v, arr) {
        var output = false;
        for (var i in arr) {
            if (v == arr[i]) {
                output = true;
                return output;
            }
        }
        output = false;
        return output;
    }
var arrs = [‘1‘,‘2‘,‘3‘];
console.log(arrHasValue(1,a)); //true
 
        