# Function call call call ...

We usually call a function by using a set on parenthesis after its name eg. `fun()`
but what if our function returned a function? In that case you would be able to call it again
```js
function hello(){
    console.log("Hello");
    return () => console.log(" world");
}
hello()();
```

It looks a lot normal if we use a variable in between
```js
function hello(){
    console.log("Hello");
    return () => console.log(" world");
}
let func = hello(); //receiving the function returned from hello
func();
```

but in we try to call the function third time it will give us error.
![function call error](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/vyrckun0klp3rypqz6vv.png)

but what if your function returned itself? in that case when ever we call it we are again getting a function returned so can can keep calling it infinitely
```js
function hello(){
    console.log("Hello");
    return hello;
}
hello()()()()()()()()()()()();
```