A useful macro for putting together strings in a low overhead manner for no_std + alloc apps.
rust
let name = "Richard";
let msg:String = string_concat!("Hello ",name,"!");
saves you from typing
rust
let name = "Richard";
let msg:String = {
let temp_string = String::new();
temp_string.push_str("Hello");
temp_string.push_str(name);
temp_string.push_str("!");
temp_string
}