Function insertion

chapter05/5.1 - Insertion/insertion.js:1–6

(N, M, i, j)

const insertion = (N, M, i, j) => {
  const bitMask = (-1 << (j + 1)) | ((1 << i) - 1);
  const clearedN = N & bitMask;
  const shiftedM = M << i;
  return clearedN | shiftedM;
};

/* TEST */
const N = parseInt(10000000000, 2);