const compose = (proc1, proc2) => 
    (x) => proc2(proc1(x));    

const double = (x) => x * 2;
const square = (x) => x * x;

doubleThenSquare = compose(double, square)
squareThenDouble = compose(square, double)

console.log(doubleThenSquare(5))
console.log(squareThenDouble(5))