local a = "hello"
print(a.upper("Sup")) -- Prints ("SUP")
My question is, how does this work, it puts the "upper" function to the variable "a" but how? and why does this work?
✓ ANSWER ACCEPTED
Why Does This Code Work When Its Not A Function Of The Variable?
1 answer
✓ Accepted answer
a is an Instance of the String base-class. Thus, it will inherit the functions belonging to it (indexable by the dot operator). If you wish to call the methods of the String Object, you must use a colon prefix.
("").upper("Hello world!") --> HELLO WORLD
--// Interpreted as:
string.upper("Hello world!") --> HELLO WORLD
####If you wish to understand more about this underlying model, research OOP (Object-oriented Programming).
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1 comment
Thank you this helped a lot