primitives

strings

When using strings you can either use str, which are static and cannot be grown, or the more dynamic String type, which can be appended, sliced and increased because it's allocated on the heap. utf8 encoded

• &str - stack allocated fixed-size string slice. Used as fn arguments.
• String - heap allocated growable string

new string

let hello = String::from("Hello, world!");   // String from literal

string literal to string collection

Gathered from IRC:

"foo".into()   // is a short way of getting a String

string to uppercase

&str.to_uppercase();   // String slice to uppercase

• Struct std::string::String