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diff​

diff(
    @llll1 ? ## required
    @llll2 ? ## required
    @function null
) -> llll/null
note

diff is a built-in function in the bell programming language and is not unique or exclusive to bellplay~.

Returns the set difference of two lllls. A comparison function can be provided through the @function argument, otherwise it performs a stardard comparison.

Arguments​

  • @llll1 [llll] (required)
  • @llll2 [llll] (required)
  • @function [function/null] (default: null)

Output​

Set difference of two lllls. [llll/null]

warning

diff will return null without raising an error if required arguments are not provided.