Generalize `filterM` (etc.?) to `Applicative`
还没有人认领这个 Issue。
评估
- 难度
- 4/5
- 预计耗时
- 3-5 天
- 新手友好度
- 42/100
- Issue 类型
- 功能
- 描述清晰度
- 基本清楚
- 活跃度
- 冷清
- 领域
- backend
调研方向
Start by reviewing the filterM implementation and the closed pull request #35, which also considered replicateM. Check whether the proposed generalization to Applicative fits the current library API, then identify any related changes from that pull request worth splitting out. Done means a focused change with tests showing filterM works with an Applicative that is not a Monad.
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描述
Today I noticed that PureScript filterM is constrained to Monad, whereas Haskell filterM is constrained to Applicative. After looking at the source code for each and asking on FP Slack, it seems there is no particular reason filterM cannot be more general in PS.
#35 was set to change this and some other things (e.g. replicateM). However, that PR was closed due to staleness. The author @DavidHarrison was going to split it up into individual PRs, but hasn't gotten around to it yet. It seems worthwhile to double-check that PR to see if there is anything else from it you may want to merge.
- 主要语言
- PureScript
- 星标
- 61
- 派生
- 50
- 平均合并
- 2 天 6 小时
- 30 天内合并 PR
- 1
环境准备
- 没有 Dockerfile 或 Docker Compose 文件
- 有 Pull Request 模板
- 没有贡献指南
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- Fork 仓库，在一个分支上完成修改。
- 提交 Pull Request，并在描述里引用这个 Issue 编号。
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ZipList is Bind未关闭
难度 4/5 3-5 天 新手友好度 35/100
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purescript/purescript-lists#218 ·
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type: enhancement
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purescript/purescript-lists#197 · 1 条评论 ·
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type: enhancement
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purescript/purescript-lists#194 · 5 条评论 ·
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