New to js algorithms, need help

JavaScript
1

Tell us what’s happening:

  **Your code so far**


function largestOfFour(arr) {
let a = [];
let b = 0;
arr.forEach((sub)=>{
  sub.forEach((s)=>{
      if(s>b){
        b = s;
      }
  })
  a.push(b);
  b = 0;
})
return a;
}
console.log(largestOfFour([[17, 23, 25, 12], [25, 7, 34, 48], [4, -10, 18, 21], [-72, -3, -17, -10]]))






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

when i run the code it works fine with numbers that are bigger than 0, but in the last sub array it doesn’t work

2

yes, because none of the numbers are positive, so the greatest number is 0
you need to refactor your code to consider negative numbers

3

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