Calling Seq.skip and Seq.take in F?

Both Seq. Skip and Seq. Take will throw this exception if called with a value larger than the sequence.

You can check the source code in Seq. Fs to see why: let skip count (sequence: seq) = { use e = sequence.GetEnumerator() let latest = ref (Unchecked. Defaultof) let ok = ref false for I in 1 .. count do if not (e.MoveNext()) then raise ) = if count InvalidOperationException "the input sequence had insufficient elements" yield e.

Current }.

I know this is an old question, but in case someone comes across this in a search the way I did: You can use Seq. Truncate if you want at most n items. It won't throw an exception if fewer than n items are available.

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