Go iterators

Basic code examples based on the current proposals for iterators and the iter package.

The following packages are included, with tests demonstrating the iterator implementations:

• bst - Binary search tree with traversal iterators
• xiter - Functions from the iterator library proposal
• list - Linked list with traversal iterators
• maps - Iterators for keys and values of maps
• secret - Iterators for a custom slice type

See the related blog post on Medium:

• A look at iterators in Go

Run

Ensure Go 1.22 is installed.

Run tests using the rangefunc experiment flag.

$ GOEXPERIMENT=rangefunc go test ./...