Return Largest Numbers in Arrays seems like it should pass

Tell us what’s happening:
I checked this in CodePen and it returns the right answers for all of the arrays tested but for some reason it doesn’t pass. I can’t seem to figure out what I’m missing. Thanks as always.

Your code so far


function largestOfFour(arr) {
let newArr = [];
for (i = 0; i < arr.length; i++) {
  newArr.push(Math.max(...arr[i]));
}
return newArr;
}

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

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Challenge: Return Largest Numbers in Arrays

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

Make sure you always declare all variables before referencing them.

Wow, I always forget the ‘var’ to set the variable in a for loop. Sorry for the bother and thanks for the help!!