what does lua operator ~= mean?

问题

probably pretty easy, but I wonder what the ~= operator means in lua, as in

if x ~= params then

Searched but found nothing.

回答1:

the ~= is not equals

It is the equivalent in other languages of !=

回答2:

The operator ~= is exactly the negation of equality (==).

See docs.

回答3:

During compilation it gets translated to not a == b.

来源：https://stackoverflow.com/questions/34713203/what-does-lua-operator-mean