threejs

1 babel 和 webpack 基础使用

安装babel

TODO

设置.babelrc

{
    "presets": [
        [
            "@babel/preset-env",
            {
                "targets": {
                    "chrome": "67"
                },
                "useBuiltIns": "usage",
                "corejs": "3.6.4"
            }
        ]
    ]
}

编译

npx babel src/ -d lib/

安装webpack

TODO

设置webpack.config.js

const path = require('path');

module.exports = {
    mode: "development",
    entry: './src/index.js',
    output: {
        filename: 'main.js',
        path: path.resolve(__dirname, 'dist')
    },
    devServer: {
        contentBase: './dist'
    },
    module: {
        rules: [
            {
                test: /\.css$/,
                use: [
                    'style-loader',
                    'css-loader'
                ]
            },
            {
                test: /\.(png|svg|jpg|gif|obj)$/,
                use: [
                    'file-loader'
                ]
            },
            {
                test: /\.js$/,
                exclude: /(node_modules|bower_components)/,
                use: {
                    loader: 'babel-loader'
                }
            }
        ]
    }
};

打包

npx webpack

配置自动化

修改package.json

...
 "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "build": "webpack",
    "watch": "webpack --watch",
    "start": "webpack-dev-server --open"
  },
...

启动自动化监控

npm run start