Function intersperse

pub fn intersperse<I>(iterable: I, element: I::Item) -> Intersperse<I::IntoIter>
where
    I: IntoIterator,
    <I as IntoIterator>::Item: Clone,

Iterate iterable with a particular value inserted between each element.

IntoIterator enabled version of Iterator::intersperse.

use itertools::intersperse;

itertools::assert_equal(intersperse(0..3, 8), vec![0, 8, 1, 8, 2]);