Skip to content

Description text of difference #246

@flip111

Description

@flip111

Example:

difference [2, 1, 2] [2, 2, 3] == [1]

https://pursuit.purescript.org/packages/purescript-arrays/7.3.0/docs/Data.Array#v:difference

Delete the first occurrence of each element in the second array from the first array, creating a new array.

I read the description as follows:

  • each element in the second array: 2, 2, 3
  • first occurrence of each element in the second array: 2, 3
  • delete [2,3] from the first array: [2,1,2] ---> deleting [2,3] ---> [1,2]

This would be a clearer description of what this function does:

For each element in the second array, find an occurrence from left to right in the first array and remove it when found.

I think the word "first" should be avoided, because in the example above then second 2 from [2,2,3] is matched against the second 2 from [2,1,2].

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions