通过本书中的一个例子，AngularJS，为什么点击Reset按钮会导致警报，sorry, please get more customers. ?
我只希望在按下Fund my startup!按钮时出现alert。
<html ng-app>
<body>
<script src=
"https://ajax.googleapis.com/ajax/libs/angularjs/1.0.1/angular.min.js">
</script>
<form ng-submit="requestFunding()" ng-controller="StartUpController">
Starting: <input ng-change="computeNeeded()" ng-model="startingEstimate">
Recommendation: {{needed}}
<button>Fund my startup!</button>
<button ng-click="reset()">Reset</button>
</form>
<script>
function StartUpController($scope) {
$scope.computeNeeded = function() {
$scope.needed= $scope.startingEstimate * 10;
};
$scope.requestFunding = function() {
window.alert("sorry, please get more customers.");
};
$scope.reset = function() {
$scope.startingEstimate = 0;
};
}
</script>
</body>
</html>
你需要阻止默认的按钮点击行为(即提交)
在angular中最显式的方式:
以下是单向的。(你也可以为此目的创建一个指令。)
模板:
<button ng-click="reset($event)">Reset</button>
$scope.reset = function( event ) {
event.preventDefault();
$scope.startingEstimate = 0;
};
在一般html中有点隐式:
<button type="button" ng-click="reset()">Reset</button>
这是通过重写button元素的type属性来实现的正好是" submit "