Rust

Trick question: what is the return type of a function with body

{
   return || true
}

Let’s try a more difficult one with closures. What’s wrong with this closure

let closure = |x: &str| x;

OSS + Rust. I have one goal in life: the ability to stop thinking at will

Isn't "let closure = x;"  doing the same thing as "let closure = |x: &str| x;"?

Good question, but no, the former assigns the value of x to the variable named closure (whatever x is), while the latter assign the specific closure to the variable where x is an input parameter.

In fact you could remove the “let closure =“ part and the problem would persist I just wanted to make it easier to read