Check if array contains specific value

Question

I have this array, with some values (int) and I want to check if a value given by the user is equal to a value in that string. If it is, output a message like \"Got your string\

Answer 1

You could also make the checking if the value exists in your array more efficient by moving your values to the index and assign them the true value.

Then when you check your table you just check if a value exists on that index, which will save you some time because you do not need to go through the whole table in the worst case scenario...

Here is the example I had in mind:

local op = {
[19]=true,
[18]=true,
[17]=true
}


if op[19] == true then
  print("message")
else
  print("other message")
end