javascript Angularjs - 复选框禁用和启用
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Angularjs - Checkbox disabling and enabling
提问by GRowing
I am looking for a way to do exactly opposite from this example that was taken from angularjs ng-disabled documentation ... http://docs.angularjs.org/api/ng.directive:ngDisabled
我正在寻找一种与这个例子完全相反的方法，这个例子取自 angularjs ng-disabled 文档...... http://docs.angularjs.org/api/ng.directive:ngDisabled
In this example checking the box disables the button. I need exactly the opposite,,, I need the checked box to enable a disabled button. Can someone shed some light on this for me please.
在此示例中，选中该框将禁用该按钮。我需要完全相反的，我需要复选框来启用禁用的按钮。有人可以为我解释一下吗？
<!doctype html>
<html ng-app>
<head>
<script src="http://code.angularjs.org/1.2.0/angular.min.js"></script>
</head>
<body>
Click me to toggle: <input type="checkbox" ng-model="checked"><br/>
<button ng-model="button" ng-disabled="checked">Button</button>
</body>
</html>
Thanks!
谢谢！
回答by tymeJV
You can do:
你可以做：
ng-disabled="!checked"
The !means to do the opposite, so !true == false = true
!做相反的手段，所以!true == false = true
Plunkr: http://plnkr.co/edit/ht0z3lTJi8EfPJEKWcWl?p=preview
Plunkr：http://plnkr.co/edit/ht0z3lTJi8EfPJEKWcWl?p=preview
