https://github.com/planjs/utils

🔧 实用工具集合
https://github.com/planjs/utils

js-utils promisekit ts-utils typescript web-kit

Last synced: 23 days ago
JSON representation

🔧 实用工具集合

• Host: GitHub
• URL: https://github.com/planjs/utils
• Owner: planjs
• License: mit
• Created: 2020-09-13T05:34:06.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2024-09-30T05:05:40.000Z (3 months ago)
• Last Synced: 2024-12-01T01:29:10.882Z (about 1 month ago)
• Topics: js-utils, promisekit, ts-utils, typescript, web-kit
• Language: TypeScript
• Homepage: https://planjs.github.io/utils/
• Size: 2.67 MB
• Stars: 16
• Watchers: 2
• Forks: 4
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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# utils

![npm](https://img.shields.io/npm/v/@planjs/utils?label=@planjs/utils) ![npm](https://packagephobia.now.sh/badge?p=@planjs/utils) [![action](https://github.com/planjs/utils/actions/workflows/npm-publish.yml/badge.svg?branch=master)](https://github.com/planjs/utils/actions/workflows/npm-publish.yml)


 [![NPM](https://nodei.co/npm/@planjs/utils.png?downloads=true&downloadRank=true&stars=true)](https://npmjs.org/package/@planjs/utils)

> 🔧 contactInfoDefault [doc](https://planjs.github.io/utils/)

## Installation

```bash

npm i @planjs/utils

```

## Usage

```javascript

import {

  delay,

  retry,

  pTry,

  sequenceChain,

  nextTick,

  range,

  REG_TEL_PHONE,

  eventCenter,

  TimeoutMap,

} from '@planjs/utils';

// promise utils

async function main() {

  await delay(100);

  function fetchData() {

    return Promise.reject(new Error('testing'));

  }

  await retry(fetchData, { maxAttempts: 3, delayMs: 500 })();

}

const pool = asyncPool({ maxConcurrency: 10 });

const randArr = range(1, 10);

nextTick(async () => {

  const [err, res] = await pTry(main());

  if (!err) {

    console.log(res);

  }

  let start = Date.now();

  await Promise.all(randArr.map((v) => pool.executor(delay(v))));

  // The timer has an accuracy problem

  if (Date.now() - start + 1 >= Math.max(...randArr)) {

    console.log('concurrency');

  }

  const count = (a = 0) => ++a;

  const val = await sequenceChain([...range(0, 10).map((v) => [count])])();

  console.log(val); // 11

});

// commonly used regex

REG_TEL_PHONE.test('132xxxxxxx'); // false

// event center

eventCenter.on('log', console.log);

eventCenter.trigger('log', 'planjs');

// ext obj

const timeoutMap = new TimeoutMap({

  timeout: 200,

  passiveDeletion: true,

  onTimeout(k, v) {

    console.log(`expired key [${k}], val [${v}]`);

  },

});

timeoutMap.set('name', 'fupengl');

delay(201).then(() => timeoutMap.get('name')); // null

```