How to fix Rust E0716 temporary value dropped while borrowed

Fix E0716 by storing the temporary value in a variable before borrowing it, ensuring the data lives long enough for the borrow to be valid.

let temp = String::from("hello");
let s = &temp;
// use s

Alternatively, if you need a string literal that lives for the entire program, use a &'static str directly:

let s = "hello";

If you are returning a reference from a function, ensure the data being returned is owned by the function's caller or has a 'static lifetime, rather than being created locally within the function.

The Rust E0716 temporary value dropped while borrowed error happens when you try to use data that disappears before you are done with it. Think of it like trying to read a note that someone just threw in the trash; the note is gone, so you can't read it. To fix it, you must keep the note in your hand (store it in a variable) until you have finished reading it.