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dart_either

v2.1.0 · released 4 months ago · MIT License

First published 5 years ago.

Either monad for Dart language and Flutter framework. Type-safe error handling, railway oriented programming. Supports Monad comprehensions, async map, async flatMap.

View on pub.dev View source
#14 in Functional Programming #1589 overall androidioswindowslinuxmacosweb
Downloads / day
960
as of 2026-07-06
GitHub stars
9
★ refreshed weekly
Likes
22
on pub.dev
Pub points
150 / 160
2026-06-06 2026-07-06

Repository health

Last commit
4 months ago
Commit activity
Open issues
1
Open PRs
6
Contributors
1
CI
GitHub Actions
License (repo)

Last refreshed 9 days ago.

License explained · MIT

MIT License

Use freely, even commercially. Just keep the copyright notice.

A short and simple permissive license with conditions only requiring preservation of copyright and license notices. Licensed works, modifications, and larger works may be distributed under different terms and without source code.

You can

  • Commercial use
  • Distribution
  • Modification
  • Private use

You must

  • Include the license and copyright notice

The license does not

  • No liability
  • No warranty

Plain-English summary, not legal advice. Full text on SPDX or choosealicense.com. Summaries adapted from choosealicense.com (a GitHub project, MIT-licensed).

Commit activity, past 52 weeks

dart_either

22 commits in the past year
Stable
10 5 0 52w ago36w ago18w agothis week
Weekly average
0.4 commits
Busiest week
9 commits, 16 weeks ago
Active weeks
4 of 52 (8%)
Longest quiet stretch
26 weeks with no commits

Weekly commits to the default branch on GitHub. Source: GET /stats/participation. Refreshed weekly. Excludes commits to other branches.

How dart_either compares in Functional Programming

Top of the Functional Programming leaderboard, with dart_either highlighted.

Rank Package Downloads / day Stars Likes
#1
built_collection
🇺🇸 google.dev
193.5K ★ 284 343
#2
rxdart
🇺🇸 fluttercommunity.dev
149.4K ★ 3.4K 2.9K
#3
dartz
 17.7K ★ 773 1.5K
#4
type_plus
🇩🇪 schultek.dev
12.9K ★ 21 30
#14
dart_either
 960 ★ 9 22