https://github.com/iplaylf2/no-stream
Like stream, but no stream.
https://github.com/iplaylf2/no-stream
collection each-once stream transduce typescript
Last synced: 2 months ago
JSON representation
Like stream, but no stream.
- Host: GitHub
- URL: https://github.com/iplaylf2/no-stream
- Owner: iplaylf2
- License: bsd-3-clause
- Created: 2021-03-01T09:20:44.000Z (about 4 years ago)
- Default Branch: main
- Last Pushed: 2021-03-05T07:50:22.000Z (about 4 years ago)
- Last Synced: 2024-04-24T09:25:15.190Z (about 1 year ago)
- Topics: collection, each-once, stream, transduce, typescript
- Language: TypeScript
- Homepage:
- Size: 68.4 KB
- Stars: 2
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# no-stream
Like stream, but no stream.
English | [中文](https://github.com/Iplaylf2/no-stream/blob/main/doc/README.cn.md)
-
## feature
- Similar to array, easy to use.
- Support async.
- Efficient.
## install
``` bash
npm install no-stream
```
## usage
``` typescript
import { ns } from "no-stream";
const s = ns(function* () {
let x = 0;
while (true) {
yield x++;
}
}); // ns([0, 1, 2...])
const result = s
.map((x) => x * 2)
.filter((x) => x % 4 === 0)
.take(10)
.reduce((r, x) => r + x, 0);
console.log(result); // 180
```
## benchmark
Benchmark which map n times and reduce once. [from benchmark.ts](https://github.com/Iplaylf2/no-stream/blob/main/debug/benchmark.ts)
array
| map times \ ops/sec \ array length | 100 | 1000 | 10000 | 100000 |
| ----------------------------------- | ------- | ----- | ----- | ------ |
| 2 | 1159961 | 23041 | 2462 | 184 |
| 3 | 184536 | 19075 | 1947 | 140 |
| 4 | 151335 | 13333 | 1561 | 114 |
| 5 | 127720 | 12334 | 1359 | 90.35 |
no-stream
| map times \ ops/sec \ array length | 100 | 1000 | 10000 | 100000 |
| ----------------------------------- | ------ | ----- | ----- | ------ |
| 2 | 400500 | 45295 | 4820 | 481 |
| 3 | 276977 | 34394 | 3599 | 349 |
| 4 | 216729 | 26527 | 2751 | 265 |
| 5 | 180349 | 22585 | 2199 | 224 |
**no-stream is more efficient!**
## [document](https://github.com/Iplaylf2/no-stream/blob/main/doc/document.md)