How do I split a string in Rust?

Question

From the documentation, it\'s not clear. In Java you could use the split method like so:

\"some string          


        

Answer 1

There are three simple ways:

1. By separator:

   s.split("separator")  |  s.split('/')  |  s.split(char::is_numeric)
   

2. By whitespace:

   s.split_whitespace()
   

3. By newlines:

   s.lines()
   

The result of each kind is an iterator:

let text = "foo\r\nbar\n\nbaz\n";
let mut lines = text.lines();

assert_eq!(Some("foo"), lines.next());
assert_eq!(Some("bar"), lines.next());
assert_eq!(Some(""), lines.next());
assert_eq!(Some("baz"), lines.next());

assert_eq!(None, lines.next());