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Editorial Team
Asked: June 1, 20262026-06-01T16:37:49+00:00 2026-06-01T16:37:49+00:00

Possible Duplicate: F# equivalent of LINQ Single This function should return the first element

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Possible Duplicate:
F# equivalent of LINQ Single

This function should return the first element of the sequence if it’s the only one, otherwise it throws exception.

Does F# have this as built-in function? If not, why is it? Seems C# has a similar one in Enumerable class extension functions.

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  1. Editorial Team
    Editorial Team
    2026-06-01T16:37:51+00:00Added an answer on June 1, 2026 at 4:37 pm

    Seq.exactlyOne ?

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