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proposal: iter: Add Contains #68945

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adamroyjones opened this issue Aug 19, 2024 · 1 comment
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proposal: iter: Add Contains #68945

adamroyjones opened this issue Aug 19, 2024 · 1 comment
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@adamroyjones
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Proposal Details

I propose a tiny, but I think helpful, addition to the iter package.

func Contains[K comparable](seq iter.Seq[K], val K) bool {
	for k := range seq {
		if k == val {
			return true
		}
	}
	return false
}

This avoids the need to collect the iter.Seq[K] into a slice.

This could be extended to ContainsFunc.

It could also be extended to Contains2 and Contains2Func, but that may be a bit more strained.
@gopherbot gopherbot added this to the Proposal milestone Aug 19, 2024
@seankhliao
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Duplicate of #67453

@seankhliao seankhliao marked this as a duplicate of #67453 Aug 19, 2024
@seankhliao seankhliao closed this as not planned Won't fix, can't repro, duplicate, stale Aug 19, 2024
@adamroyjones adamroyjones mentioned this issue Aug 19, 2024
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