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nyinyithann/update_slice_of_vector.rs

Created January 18, 2019 06:58
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update a particular slice of vector
Raw
update_slice_of_vector.rs
let mut v = vec![1, 2, 3, 4, 5];
let r = v
.get_mut(1..=2)
.map(|x| x.iter_mut().for_each(|y| *y *= 10));
if r.is_some() {
println!("Succeed : {:?}", v);
} else {
println!("Not Succeed. Do something here.");
}
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