largest number from each provided sub-array| Solution | JavaScript

largest number.js

//Return an array consisting of the largest number from each provided sub-array. For simplicity, the provided array will contain exactly 4 sub-arrays.
function largestOfFour(arr) {
subArr=[];

  arr.map((val)=>{
    return subArr.push(Math.max(...val))
  })

  return subArr;
}

console.log(largestOfFour([
  [4, 5, 1, 3],
  [13, 27, 18, 26],
  [32, 35, 37, 39],
  [1000, 1001, 857, 1],
]));