Concatenation

Concatenation is a binary operation in which two strings are joined together, creating one larger string, one following the other. In Lua, the concatenation operator is written. Concatenation is associative meaning that $$a \circ b = (a \circ b) \circ c = a \circ (b \circ c)$$, where $$\circ$$ is the concatenation operator. However, it is not commutative, meaning that $$a \circ b \neq b \circ a$$.

Example
print("hello" .. " world" .. "!") This will output.