AngularJS HTML DOM
AngularJS provides instructions for binding application data to attributes of HTML DOM elements.
ng-disabled directive
ng-disabled directive binds application data directly to the disabled attribute of HTML.
Instance
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script>
</head>
<body>
<div ng-app="" ng-init="mySwitch=true">
<p>
<button ng-disabled="mySwitch">点我!</button>
</p>
<p>
<input type="checkbox" ng-model="mySwitch"/>按钮
</p>
<p>
{{ mySwitch }}
</p>
</div>
</body>
</html>Run Instance»
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Explanation with examples:
ng-disabled The instruction binds the application data "mySwitch" to the disabled attribute of HTML.
ng-model The directive binds "mySwitch" to the content (value) of the HTML input checkbox element.
If mySwitch is true, the button will be disabled:
<button disabled>Click me! </button>
</p>
If mySwitch is false, the button is available:
<button>Click me!< /button>
</p>
ng-show directive
ng-show directive hides or shows an HTML element.
Instance
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script> </head> <body> <div ng-app=""> <p ng-show="true">我是可见的。</p> <p ng-show="false">我是不可见的。</p> </div> </body> </html>
Run Instance»
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ng-show directive shows (hides) HTML elements based on the value of value.
You can use expressions to evaluate Boolean values (true or false):
Example
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script> </head> <body> <div ng-app="" ng-init="hour=13"> <p ng-show="hour > 12">我是可见的。</p> </div> </body> </html>
Run Example »
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 | #In the next chapter, we will give you more examples of hiding HTML elements by clicking buttons. |
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ng-hide directive
ng-hide directive is used to hide or show HTML elements.
Instance
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script> </head> <body> <div ng-app=""> <p ng-hide="true">我是不可见的。</p> <p ng-hide="false">我是可见的。</p> </div> </body> </html>
Run instance»
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