vue-cli 官網:https://cli.vuejs.org/zh/guide/
一、安裝cli
若之前安裝過2.x.x,需先卸載
npm uninstall vue-cli -g
# or
yarn global remove vue-cli
Vue CLI 3.0 + 安裝改為
npm install -g @vue/cli
# OR
yarn global add @vue/cli
注:安裝yarn :https://yarnpkg.com/zh-Hans/docs/install#mac-stable
二、創建項目
1)圖形界面方式
vue ui
2)命令行
vue create [project-name]
如果你仍然需要使用舊版本的 vue init
功能,你可以全局安裝一個橋接工具:
npm install -g @vue/cli-init # `vue init` 的運行效果將會跟 `vue-cli@2.x` 相同 vue init webpack my-project
啟動項目
npm run serve
# OR
yarn serve
安裝預編譯器
#pug
npm i pug pug-plain-loader pug-loader pug-filters -D
#jade
npm install jade jade-loader -D
#安裝支持less依賴
npm i less less-loader -D
修改默認縮進size:.editorconfig
[*.{js,jsx,ts,tsx,vue}] indent_style = space indent_size = 4 // here trim_trailing_whitespace = true insert_final_newline = true
根目錄下創建vue.config.js文件
配置sass共享variables
css: { loaderOptions: { // 給 less-loader 傳遞選項 less: { javascriptEnabled: true }, // 給 sass-loader 傳遞選項 sass: { //向所有 Sass 樣式傳入共享的全局變量 data: `@import "@/assets/css/_variables.sass";` } } }
啟動報錯:
http://eslint.org/docs/rules/ Parsing error: Adjacent JSX elements must be wrapped in an enclosing tag. Did you want a JSX fragment <>...</>?
4 | </template>
5 |
> 6 | <script>
| ^
7 | export default {
8 | name: 'HelloWorld', 9 | data () { src/components/HelloWorld.vue:6:1 <script>
解決方法:https://github.com/vuejs/eslint-plugin-vue/issues/186#issuecomment-329426553
eslint的配置改了,將原來的parser配置移到parserOptions內部即可
The cause is "parser": "babel-eslint", setting. Please move it into "parserOptions".
{
"root": true, - "parser": "babel-eslint", + "parserOptions": { + "parser": "babel-eslint" + },
報錯
WARNING Compiled with 1 warnings 10:19:22 Module Warning (from ./node_modules/_eslint-loader@2.1.1@eslint-loader/index.js): error: Parsing error: Unexpected token < at src/App.vue:1:1: > 1 | <template lang="pug"> | ^ 2 | .test 123 3 | </template> 4 | 1 error found.
vue文件需要使用 vue-eslint-parser 去解析
parserOptions: { - parser: 'babel-eslint', + parser: 'vue-eslint-parser', "sourceType": "module" }
iview定制主題,引入less報錯
98% after emitting CopyPlugin s ERROR Failed to compile with 1 errors 16:07:17 error in ./src/assets/css/theme.less Module build failed (from ./node_modules/_less-loader@4.1.0@less-loader/dist/cjs.js): // https://github.com/ant-design/ant-motion/issues/44 .bezierEasingMixin(); ^ Inline JavaScript is not enabled. Is it set in your options? in /Users/linqiang/Documents/workplace/wsdtcp/node_modules/_iview@3.2.2@iview/src/styles/color/bezierEasing.less (line 110, column 0) @ ./src/assets/css/theme.less 4:14-253 14:3-18:5 15:22-261 @ ./src/main.js @ multi (webpack)-dev-server/client?http://192.168.217.105:8999/sockjs-node (webpack)/hot/dev-server.js ./src/main.js
在vue.config.js加入
... css: { loaderOptions: { // 給 less-loader 傳遞選項,開啟less的javascript選項 less: { javascriptEnabled: true } } } ...
背景圖片url路徑錯誤 ,在開發環境正常和打包后background-image: url(...) 找不到圖片,
官網處理靜態資源:https://cli.vuejs.org/zh/guide/html-and-static-assets.html#%E5%A4%84%E7%90%86%E9%9D%99%E6%80%81%E8%B5%84%E6%BA%90
解決方案:
參考鏈接:https://www.jb51.net/article/147558.htm
1. 將圖片統一放在publilc/images下
2.在vue.config.js中注入sass全局變量$baseUrl,其值取決於運行環境
const baseUrl = process.env.NODE_ENV === 'production' ? '/sub/' : '/'; module.exports = { css: { loaderOptions: { sass: { data: `$baseUrl: "${baseUrl}";` } } } }
3.sass中使用
background-image: url($baseUrl + 'images/logo.png')
網上其他解決方案:以 ~
開頭,其后的任何內容都會作為一個模塊請求被解析,但自己應用的時候好像並沒有按照模塊去解析... 暫且記錄下
background-image: url('~/@/assets/images/logo.png')
報錯
Failed to compile. ./src/assets/css/element-variables.scss (./node_modules/css-loader??ref--8-oneOf-3-1!./node_modules/postcss-loader/src??ref--8-oneOf-3-2!./node_modules/sass-loader/lib/loader.js??ref--8-oneOf-3-3!./src/assets/css/element-variables.scss) Module build failed (from ./node_modules/sass-loader/lib/loader.js): undefined ^ Media query expression must begin with '(' in /Users/linqiang/Documents/workplace/cdss-embed-vue/src/assets/css/element-variables.scss (line 2, column 22)
啟動報錯
events.js:167 throw er; // Unhandled 'error' event ^ Error: read ECONNRESET at TCP.onread (net.js:660:25) Emitted 'error' event at: at emitErrorNT (internal/streams/destroy.js:82:8) at emitErrorAndCloseNT (internal/streams/destroy.js:50:3) at process._tickCallback (internal/process/next_tick.js:63:19)
解決方案:嘗試網上搜索到的方法:更改本地啟動的ip地址為127.0.0.1;修改端口號;重新安裝node_modules;都不管用😢,無意中修改了下代理的服務器地址,正常跑起來了
路由懶加載
在vue.config.js中加入,[prefetch詳見](https://cli.vuejs.org/zh/guide/html-and-static-assets.html#prefetch)
chainWebpack: config => { // 修改prefetch:prefetch空閑加載,deprefetch會在頁面加載完成后,利用空閑時間提前加載獲取用戶未來可能會訪問的內容。 // https://cli.vuejs.org/zh/guide/html-and-static-assets.html#prefetch config.plugin('prefetch').tap(options => { options[0].fileBlacklist = options[0].fileBlacklist || []; options[0].fileBlacklist.push(/myasyncRoute(.)+?\.js$/); return options; }); }
路由配置,組件引用時
{ path: '/home, name: 'home', component: () => import('./home.vue'), }
Vue-cli3使用全局變量eslint報錯
ESLint 可以通過 .eslintrc
或 package.json
中的 eslintConfig
字段來配置。
例在.eslintrc
配置:
module.exports = { globals: { google: true // google地圖 } }