I have two arrays:
a = [
[a, b],
[c, d],
[e, f],
[g, h]
]
b = [
[a, 4],
[1, 2],
[e, 3]
]
when a[i][0], matches b[i][0], I need to add a value to the current index of a. For this example, when a[0][1] matches b[0][1], a[0][1] should look like [a,b,new_value].
If this means creating a new array with all of the values of a, that is fine, but the original values and order of a cannot change.
I have tried numerous variations of for loops and reverse for loops. I am at a loss.
Thanks in advance.