over Creates a function that invokes each provided function with the arguments it receives and returns the results. Use Array.prototype.map() and Function.prototype.apply() to apply each function to the given arguments. const over = (...fns) => (...args) => fns.map(fn => fn.apply(null, args)); const minMax = over(Math.min, Math.max); minMax(1, 2, 3, 4, 5); // [1, 5]