標籤：angularjs
ng-app 指令用於告訴 AngularJS 應用當前這個元素是根項目，所有 AngularJS 應用都必須要要一個根項目。
使用ng-app來標記一個DOM結點，在網頁載入完畢時會自動引導（自動初始化）應用程式。
ng-app可以帶屬性值，可以指定載入應用模組的名稱，ng-app="模組名稱"。
但是HTML文檔中只允許有一個 ng-app 指令，如果有多個 ng-app 指令，則只有第一個會被使用。
所以想要實現自動載入，那麼就不能讓ng-app帶有屬性值，即不能指定載入應用模組名稱。
正確寫法
<body ng-app> <div ><p> {{ 5 + 5 }}</p> </div> <div ><p> {{ 10 + 10 }}</p> </div></body>
只載入第一個塊
<body > <div ng-app><p> {{ 5 + 5 }}</p> </div> <div ng-app><p> {{ 10 + 10 }}</p> </div></body>
以下為ng-app添加屬性值的寫法都是錯誤的，會報錯
<body ng-app=“myApp”> <div ><p> {{ 5 + 5 }}</p> </div> <div ><p> {{ 10 + 10 }}</p> </div></body>
<body > <div ng-app=“app1”><p> {{ 5 + 5 }}</p> </div> <div ng-app=“app2”><p> {{ 10 + 10 }}</p> </div></body>
帶屬性值時候需要手動載入對應ng-app
<body> <div id="app1" ng-app="app1">{{ 5 + 5 }}</div> <div id="app2" ng-app="app2">{{ 10 + 10 }}</div> <script type="text/javascript"> var app1 = angular.module("app1", []); var app2 = angular.module("app2", []); angular.bootstrap(document.getElementById("app2"), [ ‘app2‘ ]); </script></body>
app1會自動載入
app2需要手動載入
angular.bootstrap() ，手動啟動 AngularJS
文檔地址 https://docs.angularjs.org/api/ng/function/angular.bootstrap
angular.bootstrap(element, [modules], [config]);
| Param | Type | Details |
|---|---|---|
| element | DOMElement | DOM element which is the root of angular application. |
| modules (optional) |
Array<String|Function|Array>= | an array of modules to load into the application. Each item in the array should be the name of a predefined module or a (DI annotated) function that will be invoked by the injector as a |
| config (optional) |
Object | an object for defining configuration options for the application. The following keys are supported:
|
element應該對應根ng-app的id，
modules 模組名數組
AngularJS ng-app的自動載入與屬性值
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