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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 19.7x the daily downloads of dartz (365,856 vs 18,538 per day). built_collection has the larger GitHub following (872 vs 771 stars).
🇺🇸 google.dev · v5.1.2
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 | 365,856 | 18,538 |
| Rank in Functional Programming | #1 | #3 |
| GitHub stars | 872 | 771 |
| Likes | 346 | 1,557 |
| Pub points | 150 / 160 | 130 / 160 |
| Issue response (median) | — | — |
| Contributors | 99 | 4 |
| Last commit | 5 days 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.