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/playground.rs

Created February 14, 2017 04:09
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playground.rs
fn main() {
let a = ["1", "2", "lol"];
let mut iter = a.iter().filter_map(|s| s.parse().ok());
assert_eq!(iter.next(), Some(1));
assert_eq!(iter.next(), Some(2));
assert_eq!(iter.next(), None);
}
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