從0開始疫情3D地球 - 3D疫情地球VDEarth - 2 - 前端代碼構建

時間 2020-08-10

標籤開始疫情 3d 地球 vdearth 前端代碼構建简体版

原文原文鏈接

基於Threejs的3D疫情地球，環境採用上篇博客裏的前端準備環境。css

首先建立前端代碼文件夾VDEarth html

mkdir VDEarth && cd VDEarch

安裝組件前端

npm安裝應用到的組件node

安裝webpack組件webpack

npm install -D webpack

安裝webpack-cli組件，webpack組件4.0+須要web

npm instlal -D webpack-cli

安裝threejs組件npm

npm install three

安裝lodash組件json

npm install lodash

代碼結構babel

webpack搭建前端代碼框架框架

npm init -y

分離webpack配置，分離爲webpack.base.js,webpack.dev.js,webpack.prod.js

搭建好的代碼結構：

沒什麼好說的，搭建能夠參考webpack官網

webpack.base.js

配置入口文件爲src下index.js文件

輸出配置爲類庫方式，另外引入一些經常使用插件和loader

 1 const path = require('path');
 2 let HtmlWebpackPlugin = require('html-webpack-plugin');
 3 const { CleanWebpackPlugin } = require('clean-webpack-plugin');
 4 const MiniCssExtractPlugin = require('mini-css-extract-plugin');
 5 const OptimizeCssAssetsPlugin = require('optimize-css-assets-webpack-plugin');
 6 const copyWebpackPlugin = require('copy-webpack-plugin');
 7 module.exports = {
 8   entry: './src/index.js',
 9   output: {
10     filename: 'VDEarth.js',
11     path: path.resolve(__dirname, 'dist'),
12     library: 'VDEarth',
13     libraryTarget: 'umd',
14     umdNamedDefine: true,
15   },
16   plugins: [
17     new HtmlWebpackPlugin({
18       template: './src/public/index.html',
19     }),
20     new CleanWebpackPlugin(),
21     new MiniCssExtractPlugin(),
22     new OptimizeCssAssetsPlugin(),
23     new copyWebpackPlugin([
24       {
25         from: __dirname + '/src/fonts', //打包的靜態資源目錄地址
26         to: './fonts', //打包到dist下面的public
27       },
28     ]),
38   ],
39   module: {
40     rules: [
41       {
42         test: /\.(woff|woff2|eot|ttf|otf|json)$/,
43         use: {
44           loader: 'file-loader',
45           options: {
46             name: 'fonts/[name].[ext]',
47             publicPath: './',
48           },
49         },
50       },
51       {
52         test: /\.(svg|gif|png|jpg)$/,
53         use: {
54           loader: 'file-loader',
55           options: {
56             name: 'images/[name].[ext]',
57             publicPath: './',
58           },
59         },
60       },
61       {
62         test: /\.(css|less)$/,
63         use: [MiniCssExtractPlugin.loader, 'css-loader', 'less-loader'],
64       },
72       {
73         test: /\.(jsx|js)$/,
74         exclude: /node_modules/,
75         loader: 'babel-loader',
76       },
77     ],
78   },
79   externals: {
80     lodash: {
81       commonjs: 'lodash',
82       commonjs2: 'lodash',
83       amd: 'lodash',
84       root: '_',
85     },
86   },
87 };

package.json

修改package.json，這裏刪除scripts屬性下的配置，修改成

"build": "webpack --config webpack.prod.js",

"watch": "webpack --watch",

"start": "webpack-dev-server --config webpack.dev.js"

build命令進行項目的發佈

start命令使用了webpack-dev-server，藉助這個能夠進行熱啓動，代碼調試

watch命令能夠不用，只是檢測改動

{
  "name": "vdearth",
  "version": "1.0.0",
  "description": "",
  "private": true,
  "dependencies": {
    "lodash": "^4.17.15",
    "three": "^0.115.0"
  },
  "devDependencies": {
    "@babel/cli": "^7.8.4",
    "@babel/core": "^7.9.0",
    "@babel/preset-env": "^7.9.0",
    "babel-loader": "^8.1.0",
    "clean-webpack-plugin": "^3.0.0",
    "copy-webpack-plugin": "^5.1.1",
    "css-loader": "^3.5.2",
    "file-loader": "^6.0.0",
    "html-webpack-plugin": "^4.0.3",
    "json-loader": "^0.5.7",
    "less": "^3.11.1",
    "less-loader": "^5.0.0",
    "mini-css-extract-plugin": "^0.9.0",
    "optimize-css-assets-webpack-plugin": "^5.0.3",
    "style-loader": "^1.1.3",
    "webpack": "^4.42.1",
    "webpack-cli": "^3.3.11",
    "webpack-dev-server": "^3.10.3",
    "webpack-merge": "^4.2.2"
  },
  "scripts": {
    "build": "webpack --config webpack.prod.js",
    "watch": "webpack --watch",
    "start": "webpack-dev-server --config webpack.dev.js"
  },
  "keywords": [],
  "author": "",
  "license": "ISC"
}