前言

偶尔会写一些 node 小工具，由于不是经常写忘的很快，特此记录一下一些常用的依赖包之类的；

支持esmodule

修改type属性；

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{
  "name": "server",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "type": "module",
  "scripts": {
    "serve":"node bin/index.js",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "chalk": "^4.1.2",
    "execa": "^5.1.1",
    "inquirer": "^8.2.0"
  }
}

chalk

地址:chalk

美化控制台的输出

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console.log(chalk.blue('Hello world!'))
console.log(chalk.red('hello world!'))

execa

地址：execa
可以开子进程，用来执行一些命令

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const child_process = execa('yarn serve', {
  cwd: url.root, // 命令执行的项目地址
  shell: true,    
  stdio: [2, 2, 2] 
}).then(res => {
  console.log('execa res:', res);
  child_process.kill();
});

inquirer

地址：inquirer
控制台输入

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import inquirer from 'inquirer'

export default function () {
  return inquirer.prompt([
    {
      type: 'input',
      name: 'projectName',
      message: 'set project name',
      validate(input) {
        if (input) return true
        return 'Please enter project name'
      },
    },
    {
      type: 'list',
      name: 'frame',
      message: 'please select a frame',
      choices: ['vue', 'react'],
      validate(input) {
        // Declare function as asynchronous, and save the done callback
        var done = this.async()
        // Do async stuff
        setTimeout(function () {
          if (typeof input !== 'number') {
            // Pass the return value in the done callback
            done('You need to select a frame')
            return
          }
          // Pass the return value in the done callback
          done(null, true)
        }, 3000)
      },
    },
  ])
}

__dirname

需要特殊处理

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import { fileURLToPath } from 'url';

const __dirname = fileURLToPath(import.meta.url);

function resolve(dir) {
  return path.join(__dirname, dir);
}