Remove part in Rust 1.55

To remove part of a string in Rust, you can use the replace() function from the std::string::String module. Here is an example:

fn main() {
    let mut s = String::from("Hello, world!");
// Remove a substring using the replace() function

    s.replace("world", "");
println!("{}", s); // Output: "Hello, !"

}

In this example, we first create a String value containing the phrase "Hello, world!". We then use the replace() function to remove the word "world" from the string. We pass "world" as the first argument to replace(), and an empty string as the second argument. This tells Rust to find all occurrences of "world" in the string and replace them with an empty string.

When we print out the value of s after calling replace(), we can see that the word "world" has been removed, leaving us with the string "Hello, !".