rustHow to merge iterators in Rust

Merging iterators in Rust can be done using the chain() method. This method takes two iterators and returns a new iterator that will iterate over both of them in sequence.

Code example:

let iter1 = vec![1, 2, 3].into_iter();
let iter2 = vec![4, 5, 6].into_iter();

let merged_iter = iter1.chain(iter2);

for i in merged_iter {
    println!("{}", i);
}

Output

1
2
3
4
5
6

Explanation:

• let iter1 = vec![1, 2, 3].into_iter();: This creates an iterator over the vector [1, 2, 3].
• let iter2 = vec![4, 5, 6].into_iter();: This creates an iterator over the vector [4, 5, 6].
• let merged_iter = iter1.chain(iter2);: This creates a new iterator that will iterate over both iter1 and iter2 in sequence.
• for i in merged_iter {: This loop will iterate over the merged_iter iterator.
• println!("{}", i);: This will print out the current value of i for each iteration of the loop.

Helpful links:

• Rust Iterator Documentation
• Rust Chain Method Documentation

Edit this code on GitHub