The
Flutter-powered AI app builder A head-to-head of two Functional Programming packages on pub.dev, by daily downloads, GitHub activity, and maintenance.
built_collection leads on usage with about 11.7x the daily downloads of dartz (183,595 vs 15,665 per day). dartz has the larger GitHub following (773 vs 283 stars).
🇺🇸 google.dev · v5.1.1
Immutable collections based on the SDK collections. Each SDK collection class is split into a new immutable collection class and a corresponding mutable builder class.
Functional Programming in Dart. Purify your Dart code using efficient immutable data structures, monads, lenses and other FP tools.
| Metric | built_collection | dartz |
|---|---|---|
| Downloads / day | 183,595 | 15,665 |
| Rank in Functional Programming | #1 | #3 |
| GitHub stars | 283 | 773 |
| Likes | 342 | 1,548 |
| Pub points | 150 / 160 | 130 / 160 |
| Issue response (median) | — | — |
| Contributors | 22 | 4 |
| Last commit | 2 months ago | 3 years ago |
| CI | Yes | No |
| License | BSD-3-Clause | MIT |
| First published | 11 years ago | 10 years ago |
| Platforms | android, ios, windows, linux, macos, web | android, ios, windows, linux, macos, web |
Highlighted cell wins each comparable metric. For rank, issue response, and last commit, lower is better.