Wolfram Function Repository
Instant-use add-on functions for the Wolfram Language
Function Repository Resource:
Count the number of arguments a pure function or compiled function takes
ResourceFunction["ArgumentCount"][Function[…]] counts how many arguments the function takes. |
Find the highest numbered slot in a function:
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In this function, slot 2 goes unused, but it will still be counted:
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Slots in inner functions are not counted:
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A function that uses SlotSequence will be counted as taking infinitely many arguments:
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String slots will be counted as being part of the first argument:
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ArgumentCount works with compiled functions:
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A function that uses SlotSequence will be counted as having infinite arguments:
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This behavior can be changed with the "IgnoreSlotSequence" option:
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