21 lines
643 B
Markdown
21 lines
643 B
Markdown
# Iterator
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https://doc.rust-lang.org/stable/rust-by-example/flow_control/for.html#for-and-iterators
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```rust,editable
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// (all the type annotations are superfluous)
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// A reference to a string allocated in read only memory
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let pangram: &'static str = "the quick brown fox jumps over the lazy dog";
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println!("Pangram: {}", pangram);
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// Iterate over words in reverse, no new string is allocated
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println!("Words in reverse");
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for word in pangram.split_whitespace().rev() {
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println!("> {}", word);
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}
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// Copy chars into a vector, sort and remove duplicates
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let mut chars: Vec<char> = pangram.chars().collect();
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chars.sort();
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chars.dedup();
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``` |