iter

Note

This repository is archived and no longer maintained.

It provided iterator utilities for Go before the language had native iterator support. As of Go 1.23, range-over-func and the standard library iter package provide first-class iterators, and helpers such as slices.Chunk cover the batched-slice use case. Prefer those for new code.

The content is kept for historical reference only.

Iterator utils for Go.

import "golang.design/x/iter"

Batched Slice Iterator

it := iter.NewBatchFromSlice[T](s, 42)
for batch, ok := it.Next(); ok; batch, ok = it.Next() {
    // do something with batch
}

Batched gorm Iterator

it := NewGormIter[T](tx, batchSize)
for batch, ok := it.Next(); ok; batch, ok = it.Next() {
	// Process the batch.
	...
	// Stop the iteration if necessary.
	if ... {
		it.Stop()
		break
	}
}
if err := it.Err(); err != nil {
	// Handle the error.
}

License

MIT | © 2023 The golang.design Initiative Authors, written by Changkun Ou.