local tab = {
    ['A'] = {Number = 1}
}

--Standard way to remove a value from a table

for i,v in next, tab do
    if i == 'A' then
        table.remove(tab,i) --Except here, i is a string, not a number
    end
end

   -- If I try to do

    tab['A'] = nil

    --this wont work because of the fact that

    ' for i,v in next, ' doesnt like nil values in tables.

    What is the workaround for removing a key that is a string from a table?