I feel like this is a really silly question...
t = {
a = {x,y},
b = {z},
}
How do I print the first value of the key 'a'? ("x") Neither
print(t["a"][1])
nor
print(t.a[1])
does it, so how would I go about?
What's the difference between '[]' and '.' btw?
What's the difference between '[]' and '.' btw?
The dot is just a shortcut / syntax sugar for the index operator [] with strings.
foo.bar is equivalent to foo["bar"]. foo[bar] on the other hand would return the value at the index of the value of the variable bar, so if bar happens to be baz it would do foo["baz"] / foo.baz.
You must use the []-syntax when using strings which are no valid Lua identifiers ("variable names") or non-strings as indices, like foo["Jon Doe"] or foo[3].
In this code, x, y, and z are all undefined and so t.a and t.b are empty tables. My answer to your previous question stores x, y, and z as strings (but as keys, not as values).
t = {a = {'x','y'}, b = {'z'}}