https://github.com/chinanf-boy/explain-yarn

explain --> yarn - manger your project
https://github.com/chinanf-boy/explain-yarn

explain explain-yarn yarn

Last synced: about 1 month ago
JSON representation

explain --> yarn - manger your project

• Host: GitHub
• URL: https://github.com/chinanf-boy/explain-yarn
• Owner: chinanf-boy
• Created: 2017-12-20T08:40:50.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2017-12-20T08:44:13.000Z (about 7 years ago)
• Last Synced: 2024-10-28T05:19:43.697Z (3 months ago)
• Topics: explain, explain-yarn, yarn
• Language: JavaScript
• Size: 4.88 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README-src.md

Awesome Lists containing this project

README

        
# yarn-src

[![explain](http://llever.com/explain.svg)](https://github.com/chinanf-boy/Source-Explain)

explain-yarn ``"version": "1.3.2"``

yarn解释-全目录

- [yarn-bin/yarn.js](./README.md)

- [yarn-src/](README-src.md) <--- 你在这里

``yarn`` 的 ``star`` 基本是 ``npm`` 的两倍了

---

本章节

## 目录

- [命令行](#命令cli)

---

## 命令cli

[src/cli/index.js](yarn/src/cli/index.js)

[代码1-13](yarn/src/cli/index.js)

``` js

/* @flow */

import http from 'http'; 

import net from 'net';

import path from 'path';

// 上面内置函数

import commander from 'commander'; // tj 命令行解析

import fs from 'fs';

import invariant from 'invariant';

//在开发中提供描述性错误的一种方法，但在生产中存在一般性错误。

import lockfile from 'proper-lockfile';

import loudRejection from 'loud-rejection';

import onDeath from 'death';

import semver from 'semver';

```

### > commander

[try/try_commander.js](./try/try_commander.js)

``` js

#!/usr/bin/env node

var program = require('commander');

program

  .version('0.1.0')

  .option('-p, --peppers', 'Add peppers')

  .option('-P, --pineapple', 'Add pineapple')

  .option('-b, --bbq-sauce', 'Add bbq sauce')

  .option('-c, --cheese [type]', 'Add the specified type of cheese [marble]', 'marble')

  .parse(process.argv);

console.log('you ordered a pizza with:');

if (program.peppers) console.log('  - peppers');

if (program.pineapple) console.log('  - pineapple');

if (program.bbqSauce) console.log('  - bbq');

if (program.cheese) console.log('  - ',program.cheese);

console.log('  - %s cheese', program.cheese);

```

>try

```

npm run commander:try

```

### > invariant

[try/try_invariant.js](./try/try_invariant.js)

``` js

var invariant = require('invariant');

invariant(true, 'This will not throw');

// 没有

invariant(false, 'This will throw an error with this message');

// Error: Invariant Violation: This will throw an error with this message

```

>try

```

npm run invariant:try

```