Tell us what’s happening:
Can return ‘ar’ and ‘len’ right but returns nothing for ‘arg’. The syntax seems right and it’s no runtime error. I don’t understand why ‘len’ isn’t ‘pushed’ to ‘arg’.
Your code so far
function largestOfFour(ar) {
var arg = []; //to put the numbers in
var len = ar.length; //how many miniarrays there are
for(var x = 0; i<len; i++){ //loops the number of miniarrays
var lar = 0; //to store the biggest int of four
lar = ar[0]; //lar = firstnum of miniarray
for(var i = 0; i<4; i++){ //four times (i = 0,1,2,3)
if(ar[i]>lar){lar=ar[i];} //sets lar equal if(i[1/2/3] are bigger than ar[0])
}
arg.push(lar);//pushes biggest num on arg
}
return arg; //returns arg
}
largestOfFour([[4, 5, 1, 3], [13, 27, 18, 26], [32, 35, 37, 39], [1000, 1001, 857, 1]]);
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Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-algorithm-scripting/return-largest-numbers-in-arrays