8000 filter followed by slice with negative begin not working · Issue #1992 · immutable-js/immutable-js · GitHub
[go: up one dir, main page]

Skip to content
filter followed by slice with negative begin not working #1992
Closed
@oloftus

Description

@oloftus

What happened

I would expect the following code

Immutable.Range(0, 10).filter($ => true).slice(-2).toArray()

to return

[8, 9]

but instead it returns

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

i.e. the slice operation is ignored.

If you remove the filter operation, the slice works as expected.

If you slice with a positive begin value, it works as expected.

How to reproduce

Run the above code snippets in the Chrome debug console on the immutable-js.com website, which embeds the Immutable library.

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

      0