How to convert string to str in rust

In Rust, a String is a type that represents a string with a known, fixed length. It is stored on the heap and is owned by the Rust runtime. A &str is a type that represents a string slice, which is a reference to a contiguous sequence of characters. It is stored on the stack and is not owned by the Rust runtime.

To convert a String to a &str, you can use the as_str method:

let string = String::from("hello");
let str_slice: &str = string.as_str();

Alternatively, you can use the & operator to create a reference to the string:

let string = String::from("hello");
let str_slice: &str = &string;

Note that both of these methods create a reference to the string, not a new string. The original String object is still owned by the Rust runtime and can be modified or dropped as needed.