The trait `FnMut<(char,)>` is not implemented for `String` when trying to split a string

Question

I need to split a String (not &str) by another String:

use std::str::Split;

fn main() {
    let x = \"\".to_strin         


        

Answer 1

All is in the documentation. You can provide one of:

• A &str,
• A char,
• A closure,

Those three types implement the Pattern trait. You are giving a String to split instead of a &str.

Example:

fn main() {
    let x = "".to_string();
    let split = x.split("");
}