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@enihsyou
Created December 17, 2020 10:18
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How to iterate through slice in chunk
// int64 version, iterate through slice in chunk, breaks on first error.
func IterateSliceInChunk(slice []int64, chunkSize int, work func([]int64) error) error {
if chunkSize < 1 {
panic("chunk size is below one")
}
var offset = 0
var err error
for err == nil {
lower, upper := offset, offset+chunkSize
if upper >= len(slice) {
err = work(slice[lower:])
break
} else {
err = work(slice[lower:upper])
offset = upper
}
}
return err
}
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