What does operator ~= mean in Lua?

Question

What does the ~= operator mean in Lua?

For example, in the following code:

if x ~= params then

score 65 · Accepted Answer · answered Jan 11 '16 at 02:14

65

the ~= is not equals

It is the equivalent in other languages of !=

answered Jan 11 '16 at 02:14

caulitomaz

1

thanks a lot caulitomaz. yes, it makes a lot of sense - almost obvious in retrospective. – Alejandro Simkievich Jan 11 '16 at 02:16
9

Makes no sense actually, since ~ is the mathematical symbol of approximately equal ... would maybe make sense if it was the same as an == in js tho :p – Brant Sterling Wedel Oct 08 '17 at 04:35
3

I suppose on second thought A != B mathematically means factorial of A is equal to B ... so maybe I can forgive Lua being written in C but not just using the C style != operator :p – Brant Sterling Wedel Oct 08 '17 at 05:08

pushkin · Answer 2 · 2018-01-19T20:49:05.910

15

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

See docs.

edited Jan 19 '18 at 20:49

answered Jan 11 '16 at 02:14

pushkin

1

thanks a lot for pointing to the docs pushkin - for some reason googling ~= did not work for me. But now that I see the code, it makes a lot of sense. – Alejandro Simkievich Jan 11 '16 at 02:17

score 7 · Answer 3 · answered Jan 11 '16 at 22:15

7

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

answered Jan 11 '16 at 22:15

Creator

score 2 · Answer 4 · answered Aug 24 '21 at 18:29

2

~= in Lua, is just like doing != in other languages like C#.

answered Aug 24 '21 at 18:29

TERIHAX

4 Answers4