pascals_triangle.js

/* exported nCr */

function nCr(pool, chosen) {
  if (chosen < 0 || chosen > pool) {
    return 0;
  }
  let row = [1];
  console.log(row);
  for (let i = 0; i < pool; ++i) {
    const newRow = [];
    // TODO
    row = newRow;
    console.log(row);
  }
  return row[chosen];
}