Angular CLI 是 Angular 客戶端命令行工具,提供很是多的命令來簡化 Angular 的開發。 本文總結了在實際項目中常常會用到的 Angular CLI 命令。git
ng -h
)ng -h
等同於ng --help
,跟全部的其餘命令行同樣,用於查看全部命令的一個幫助命令。執行該命令能夠看到 Angular CLI 全部的命令:github
>ng -h Available Commands: add Adds support for an external library to your project. build (b) Compiles an Angular app into an output directory named dist/ at the given output path. Must be executed from within a workspace directory. config Retrieves or sets Angular configuration values. doc (d) Opens the official Angular documentation (angular.io) in a browser, and searches for a given keyword. e2e (e) Builds and serves an Angular app, then runs end-to-end tests using Protractor. generate (g) Generates and/or modifies files based on a schematic. help Lists available commands and their short descriptions. lint (l) Runs linting tools on Angular app code in a given project folder. new (n) Creates a new workspace and an initial Angular app. run Runs a custom target defined in your project. serve (s) Builds and serves your app, rebuilding on file changes. test (t) Runs unit tests in a project. update Updates your application and its dependencies. See https://update.angular.io/ version (v) Outputs Angular CLI version. xi18n Extracts i18n messages from source code. For more detailed help run "ng [command name] --help"
如下示例,建立一個名爲「user-management」的 Angular 應用:npm
ng new user-management
如下示例,建立一個名爲 UsersComponent 的組件:瀏覽器
ng generate component users
如下示例,建立一個名爲 UserService 的服務:app
ng generate service user
執行:工具
ng serve --open
此時,應用就會自動在瀏覽器中打開。訪問地址爲 http://localhost:4200/。測試
目前,Angular 社區很是活躍,版本會常常更新。對 Angular 的版本作升級,只需簡單一步執行:ui
ng update
若是是想把整個應用的依賴都升級,則執行:spa
ng update --all
Angular 支持自動化測試。Angular的測試,主要是基於Jasmine和Karma庫來實現的。只需簡單一步執行:命令行
ng test
要生成覆蓋率報告,運行下列命令:
ng test --code-coverage
光有 Angular 源碼是否不足以將 Angular 啓動起來的,須要先安裝 Angular 應用所須要的依賴到本地。
在應用目錄下執行:
npm install