francis
所属分类：网络编程
开发工具：TypeScript
文件大小：0KB
下载次数：0
上传日期：2019-04-01 21:05:02
上 传 者：
sh-1993
说明： React编程，专注于开发人员友好的流语义、高性能和功能使用，
(Reactive programming with focus on developer friendly stream semantics, high performance and functional usage,)
文件列表:
.npmignore (106, 2019-04-01)
.prettierrc (206, 2019-04-01)
.travis.yml (209, 2019-04-01)
BACON.md (1974, 2019-04-01)
LICENSE (1076, 2019-04-01)
bacon.d.ts (28, 2019-04-01)
bacon.js (49, 2019-04-01)
build/ (0, 2019-04-01)
build/bacon.umd.config.js (730, 2019-04-01)
build/bacon.umd.min.config.js (843, 2019-04-01)
build/francis.esm.config.js (788, 2019-04-01)
build/francis.umd.config.js (724, 2019-04-01)
build/francis.umd.min.config.js (837, 2019-04-01)
docs/ (0, 2019-04-01)
docs/.babelrc (44, 2019-04-01)
docs/INTRODUCTION.md (1202, 2019-04-01)
docs/api.json (24621, 2019-04-01)
docs/app.css (1646, 2019-04-01)
docs/index.html (131832, 2019-04-01)
docs/package-lock.json (391129, 2019-04-01)
docs/package.json (930, 2019-04-01)
docs/src/ (0, 2019-04-01)
docs/src/buildDocs.js (1246, 2019-04-01)
docs/src/dev.html (564, 2019-04-01)
docs/src/dev.js (608, 2019-04-01)
docs/src/extractApi.ts (5582, 2019-04-01)
docs/src/ui.js (6814, 2019-04-01)
docs/tsconfig.json (201, 2019-04-01)
package-lock.json (225314, 2019-04-01)
package.json (2465, 2019-04-01)
perf/ (0, 2019-04-01)
perf/_base.js (2716, 2019-04-01)
perf/_libs.js (941, 2019-04-01)
perf/_util.js (374, 2019-04-01)
perf/index.js (1684, 2019-04-01)
perf/memtest.js (4930, 2019-04-01)
perf/package-lock.json (251106, 2019-04-01)
... ...
# Francis
[](https://travis-ci.org/milankinen/francis)
[](https://www.npmjs.com/package/francis)
[](https://bundlephobia.com/result?p=francis)
[](https://github.com/milankinen/francis/blob/master/package.json)
Francis is a reactive programming library for TypeScript and JavaScript, inspired by
[Bacon.js](https://github.com/baconjs/bacon.js) and [most](https://github.com/cujojs/most),
with focus on developer friendly stream semantics, high performance and functional usage.
```typescript
import * as F from "francis"
F.pipe(
F.interval(1000, "!"),
F.scan("Francis", (s, x) => s + x),
F.map(s => "Hello " + s.toUpperCase()),
F.skip(2),
F.take(2),
F.onValue(console.log),
)
// Hello FRANCIS!!
// Hello FRANCIS!!!
```
## Motivation
**tl;dr** I wanted a functional-first, treeshakeable [Bacon.js](https://github.com/baconjs/bacon.js)
that is [6-10x faster](perf#latest-test-results), has lower memory footprint and is written
entirely with TypeScript.
## Installation
```bash
npm i --save francis
```
## API
See **[API docs](https://milankinen.github.io/francis)** (still WIP!) for complete
reference of the available functions and their usage.
### Bacon.js compatibility
Because the stream semantics are same (with [few differences](BACON.md)) in Francis and
Bacon, Francis provides a drop-in replacement module for Bacon. The required changes
in codebase are:
```diff
-import B from "baconjs"
+import B from "francis/bacon"
B.once("Bacon")
.map(x => "Hello " + x + "!")
.map(".toUpperCase")
.onValue(console.log)
```
### Experimental proxied API
You can convert any Francis observable to a "proxied" observable by using `F.proxied`
utility. Proxied observables are just like their "normal" counterparts, but in
addition they provide a way to traverse the underlying data structure by using
the traditional dot notation. And being typed, of course.
**ATTENTION!** This feature is experimental and is probably subject to change.
```ts
import * as F from "francis"
const state = F.proxied(
F.atom({
msg: "Tsers",
inner: { nums: [1, 2, 4, 5] },
}),
)
// typeof nums === F.Proxied.Atom
const { nums } = state.inner
// typeof str === F.Proxied.Property
const str = nums
.map(n => n + 1)
.filter(n => n % 2 === 1)
.join(",")
F.log("str:", str)
F.set(nums, [5, 6])
// logs "3,5" and "7"
```
## License
MIT
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