Unable to compare negative numbers in array

Question

Hello,

I made a small code trying to find the largest and smallest number in an array. However, it seems like the program refuse to execute the first condition I set, can someone help to advise on this please?

function differenceMinMax(array) {
for (var i = 0; i < array.length; i++) {
if (array[i+1]< array[i]) {
console.log("test");
}
}
}
differenceMinMax([-5,0,3]);

Regards
Ben

Answer 1

array[i+1] is trying to find non-exist value at the last loop
For your example, array length is 3 so last index is 2
..if(array[3]<array[2])..
but there isn't array[3]

You should avoid this
for(var i=0; i<array.length-1; i++)

Answer 2

thank you!