**Tell us what’s happening:**

i can’t complete the challenge because my code fail to return -3 on the last test

`largestOfFour([[17, 23, 25, 12], [25, 7, 34, 48], [4, -10, 18, 21], [-72, -3, -17, -10]])`

should return `[25, 48, 21, -3]`

.

**Your code so far**

```
function largestOfFour(arr) {
// You can do this!
var largest = [];
for(var i = 0; i < arr.length; i++){
var v = 0;
for(var j = 0; j < arr[i].length; j++){
if(arr[i][j] > v){
v = arr[i][j];
} else {
Math.max.apply(...arr[i][j]);
}
}
largest.push(v);
}
return largest;
}
console.log(largestOfFour([[17, 23, 25, 12], [25, 7, 34, 48], [4, -10, 18, 21], [-72, -3, -17, -10]]));
```

**Your browser information:**

User Agent is: `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.100 Safari/537.36`

.

**Link to the challenge:**

https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-algorithm-scripting/return-largest-numbers-in-arrays