Mini test

gistfile1.txt

const arr = [1,2,3,4,6];

const reduce = (arr, init, cb) => { 
  // TODO this! 
}


// Mini test
const sum = reduce(arr, 0, (a, i) => a + i);
const mul = reduce(arr, 1, (a, i) => a * i);
const odd = reduce(arr, 0, (a, i) => a + (i % 2 ? 1 : 0));

console.log(sum);
console.log(mul);
console.log(odd);