So let’s say I have an array with a name of test. If I assign it like this:
var test = [1, 2, 3, 4];
Is there a way to choose the number 2 by saying which number is below 3?
Sorry if I didn’t explain it good enough, if theres a part you didn’t understand tell me and I’ll try to explain better.
You can use
indexOf to find the index of
3 and then just count one index down from there:
var test = [1, 2, 3, 4]; console.log( test[test.indexOf(3) - 1] );