Element UI 项目工程化剖析之项目概览、package.json、npm script

2023-09-25 22:19:15

前言

工程化是提升前端项目质量和效率的重要手段。Element UI 作为一款成熟的前端 UI 框架，在工程化方面有着丰富的实践经验。本文将通过解析 Element UI 项目源码，从项目概览、package.json、npm script 等方面逐一剖析其工程化实践，为读者提供深入理解和借鉴。

项目概览

Element UI 项目采用标准的 Node.js 项目结构，主要目录如下：

build：存放构建产物
docs：存放文档
examples：存放示例代码
packages：存放各个模块代码
scripts：存放脚本文件
src：存放源代码
test：存放测试代码

其中，packages 目录下包含了 Element UI 的各个模块，如 button、input、table 等。src 目录下存放着项目的源代码，包括组件、指令、服务等。

package.json

package.json 是 Node.js 项目的配置文件，其中包含了项目的基本信息、依赖关系、脚本命令等。Element UI 项目的 package.json 如下：

{
  "name": "element-ui",
  "version": "2.15.9",
  "description": "A Vue.js 2.0 UI Toolkit for Web",
  "main": "lib/index.js",
  "module": "es/index.js",
  "types": "types/index.d.ts",
  "scripts": {
    "dev": "webpack-dev-server --config build/webpack.dev.conf.js",
    "build": "npm run docs && webpack --config build/webpack.prod.conf.js",
    "docs": "vuepress dev docs",
    "lint": "eslint --ext .js,.vue src",
    "test": "jest --coverage",
    "test:watch": "jest --watch",
    "test:update": "jest --updateSnapshot"
  },
  "keywords": [
    "vue",
    "element",
    "ui",
    "javascript",
    "framework",
    "component",
    "web",
    "frontend"
  ],
  "author": "Element UI Team",
  "license": "MIT",
  "dependencies": {
    "core-js": "^3.22.5",
    "element-plus": "2.2.18",
    "normalize.css": "8.0.1",
    "vue": "^3.2.43",
    "vue-loader": "^16.11.1",
    "vue-router": "^4.1.4",
    "vue-template-compiler": "^2.7.26"
  },
  "devDependencies": {
    "@vue/cli-plugin-babel": "~5.0.0",
    "@vue/cli-plugin-eslint": "~5.0.0",
    "@vue/cli-plugin-pwa": "~5.0.0",
    "@vue/cli-service": "~5.0.0",
    "@vuepress/cli": "^1.9.7",
    "@vuepress/plugin-docsearch": "^3.0.3",
    "@vuepress/plugin-google-analytics": "^1.1.1",
    "@vuepress/plugin-nprogress": "^2.0.0",
    "@vuepress/plugin-register-components": "^2.0.0",
    "@vuepress/plugin-search": "^2.1.0",
    "@vuepress/plugin-smooth-scroll": "^2.0.0",
    "@vuepress/plugin-theme-data": "^3.0.0",
    "@vuepress/theme-default": "^2.0.0",
    "@vuepress/webpack": "^2.0.0",
    "babel-eslint": "^11.1.0",
    "babel-jest": "^29.0.2",
    "babel-loader": "^8.2.5",
    "chalk": "^4.1.2",
    "cross-env": "^7.0.3",
    "css-loader": "^6.7.1",
    "eslint": "^8.21.0",
    "eslint-config-vue": "^9.0.0",
    "eslint-plugin-jest": "^25.7.0",
    "eslint-plugin-vue": "^8.6.0",
    "execa": "^6.1.0",
    "file-loader": "^6.2.0",
    "friendly-errors-webpack-plugin": "^2.3.0",
    "happypack": "^6.0.0",
    "html-webpack-plugin": "^5.5.0",
    "jest": "^29.0.2",
    "jest-diff": "^30.0.2",
    "jsdoc-to-markdown": "^6.0.1",
    "less": "^4.1.3",
    "less-loader": "^10.2.0",
    "mini-css-extract-plugin": "^2.6.0",
    "optimize-css-assets-webpack-plugin": "^6.0.3",
    "pnp-webpack-plugin": "^1.7.0",
    "postcss-import": "^14.1.0",
    "postcss-loader": "^6.2.1",
    "postcss-px2rem": "^2.0.0",
    "rimraf": "^3.0.2",
    "sass-loader": "^13.0.2",
    "style-loader": "^3.3.1",
    "terser-webpack-plugin": "^5.3.6",
    "url-loader": "^4.1.1",
    "vue-jest": "^5.0.6",
    "vue-loader": "^16.11.1",
    "vue-template-compiler": "^2.7.26",
    "webpack": "^5.73.0",
    "webpack-cli": "^4.10.0",
    "webpack-dev-server": "^4.10.0",
    "webpack-merge": "^5.8.0"
  }
}