# webpack_test

**Repository Path**: xiaozhouboom/webpack_test

## Basic Information

- **Project Name**: webpack_test
- **Description**: 分支管理webpack的测试demo
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-05-10
- **Last Updated**: 2021-06-29

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# webpack_demo

如何创建个使用 loader 和 plugin
loader 用来修改代码中的// todo 注释为 console.log("abc");

## 初始化 webpack 项目

```
npm init //一路回车
npm install webpack webpack-cli //安装webpack依赖
npm install @babel/core @babel/preset-env -D //安装babel
```

### 开发 loader

```
// 创建loader loader.js

module.exports = function (resource) {
  console.log('加载todo-loader啦');
  // console.log(resource);
  const result = resource.replace(/\/\/\stodo/, 'console.warn("abc")');
  return result;
};

// webpack.config.js 配置本地引入loader

const path = require('path');

module.exports = {
  entry: './main.js',
  module: {
    rules: [
      {
        test: /.js$/,
        use: [
          {
            loader: path.resolve(__dirname, 'loader.js'),
          },
        ],
      },
    ],
  },
};


```