How can you use the syntax to refer to two separate arrays in a for loop by using a third array

Apologies if my question is unclear, allow me to clarify:

I have two arrays in 2D format:

const letterA = [ [...],[...],...];
const letterB = [ [...],[...],...];
const letterArray["A","B"];

I want to access them using a for loop like so:

let i = 0;
for(i = 0; i < letterArray.length; i++){
  letter[ letterArray[i] ][foo][foo1]; //This is where I need assistance
}

Can someone please explain the syntax required for this?

Edit: I attempted the following:

eval('letter'+letterArray[i])[j][k]

but I encountered the error:

ReferenceError: letterA is not defined

javascript arrays syntax reference

Answer №1

To resolve the problem, I organized letterA and letterB in a dictionary and utilized it in this manner:

letters = {
letterA : [ [...],[...],...],
letterB : [ [...],[...],...]
};

for(var letter in letters){
    letters[letter][j][k];
}

Appreciation for the assistance, -Jacob

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