var isAboveTen = function (element, index, array) { //show all arguments passed
return element >= 10;
};
array1 = [1, 3, 43, 4, 121, 9, 314, 31];
//Filter out numbers that are equal or above 10, create new array
console.log(array1.filter(isAboveTen)); //logs [43, 121, 314, 31]