Function replace 

pub fn replace(string: &str, from: &str, to: &str) -> Result<String>

Replaces all matches of a pattern with another string.

replace creates a new String, and copies the data from this string slice into it. While doing so, it attempts to find matches of a pattern. If it finds any, it replaces them with the replacement string slice.

Examples

Basic usage:

let s = "this is old";

assert_eq!("this is new", rune::alloc::str::replace(s, "old", "new")?);
assert_eq!("than an old", rune::alloc::str::replace(s, "is", "an")?);

When the pattern doesn’t match, it returns this string slice as String:

let s = "this is old";
assert_eq!(s, rune::alloc::str::replace(s, "cookie monster", "little lamb")?);

Single ascii-character replacements are optimized for performance:

assert_eq!("say", rune::alloc::str::replace("bay", "b", "s")?);