What does this do? Is this something like an empty function? Can't find any information on this, in what use case this is used?
(() => {
console.log("test");
})
Asked
Active
Viewed 34 times
0
-
2It doesn't really do anything. It creates a function, but it never calls it, and the function cannot subsequently be referenced. It's pretty much useless code. – Pointy Feb 11 '22 at 20:40
-
This is a Arrow function – Toby Feb 11 '22 at 20:40
-
@Pointy I have seen this somewhere before, but whenever I run it, it doesn't do anything – z0nk Feb 11 '22 at 20:40
-
It technically can be referenced...by using `();`, but that seems really pointless. – disinfor Feb 11 '22 at 20:40
-
@Toby I know this is an arrow function but thats not the information I want to find out – z0nk Feb 11 '22 at 20:41
-
1@disinfor it *could* but that's not what was posted in the question.\ – Pointy Feb 11 '22 at 20:41
-
@z0nk not doing anything is pretty much what I meant. It is not useful code. – Pointy Feb 11 '22 at 20:41
-
@Pointy Oh...I agree. The duplicate is the info I think OP needs. – disinfor Feb 11 '22 at 20:41
-
@Pointy is there way to run it somehow tho? Is this totally useless and should I forget about it? – z0nk Feb 11 '22 at 20:41
-
"What does it do?" It prints out test into the console. – Toby Feb 11 '22 at 20:42
-
1If you posted an *actual* example from some context where you've seen the code, that would be helpful. – Pointy Feb 11 '22 at 20:42
-
@Toby no it does not. – Pointy Feb 11 '22 at 20:42
-
@Pointy, if you invoke it. – Toby Feb 11 '22 at 20:44
1 Answers
3
If it had another set of parenthesis at the end, it would be a self executing function
(() => {
console.log("test");
})()
but as is, it does nothing.
iain
- 223
- 2
- 15