Javascript array reduce returns empty array

Question

Why is this simple example returning an empty array?

const arr = [1, 2];
const result = arr.reduce((list, val) => {
  list.push[val];
  return list;
}, []);

console.log(result);

Answer 1

You are using Array.prototype.push in the wrong way.

const arr = [1, 2];
const result = arr.reduce((list, val) => {
  list.push(val);
  return list;
}, []);

console.log(result);