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Function::slots

Details

  • This message is generated when a Function expression is used with an insufficient number of arguments to substitute for a SlotSequence parameter.
  • The notation ##n is equivalent to SlotSequence[n] if n is a positive integer.
  • Off[message] switches off the message; On[message] switches it on. For example: Off[Function::slots].

Examples

Basic Examples  (1)

The Function expression in the first argument of Apply does not provide for any arguments to fill the SlotSequence expression:

Wolfram Language code: Apply[{#1, {##3}}&, {7}]

This shows valid arguments for this Function expression:

Wolfram Language code: Apply[{#1, {##3}}&, {7, 8, 9, 5}]