diff options
Diffstat (limited to 'pkg/u/util.go')
-rw-r--r-- | pkg/u/util.go | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/pkg/u/util.go b/pkg/u/util.go new file mode 100644 index 0000000..34eafd1 --- /dev/null +++ b/pkg/u/util.go @@ -0,0 +1,17 @@ +package u + +func First[T any](v []T) (T, bool) { + if len(v) == 0 { + var zero T + return zero, false + } + return v[0], true +} + +func ChunkBy[T any](items []T, chunkSize int) [][]T { + var chunks = make([][]T, 0, (len(items)/chunkSize)+1) + for chunkSize < len(items) { + items, chunks = items[chunkSize:], append(chunks, items[0:chunkSize:chunkSize]) + } + return append(chunks, items) +} |