How to Split a String in Rust

Use the split_whitespace() method to split a string by any whitespace or split() with a specific delimiter to get an iterator of substrings.

let text = "hello world wonderful world";
for word in text.split_whitespace() {
    println!("Word: {}", word);
}

For a specific delimiter like a period:

let novel = String::from("Call me Ishmael. Some years ago...");
let first_sentence = novel.split('.').next().unwrap();
println!("First sentence: {}", first_sentence);

Splitting a string breaks a long piece of text into smaller, manageable chunks based on a rule, like spaces or punctuation. You use this when you need to process individual words or sentences from a larger block of text. Think of it like cutting a loaf of bread into slices so you can handle each piece separately.