Question

我正在学习angularjs。我已经介绍了一个问题，当我点击ng-click时，ng-model没有更新。我的代码如下，

＆＃13;

<div ng-repeat="product in cart">
    <input type="number" ng-model="product.quantity" ng-required class="input-sm">
    <button class="btn btn-xs" type="button" ng-click="product.quantity++">+</button>
    <button class="btn btn-xs" type="button" ng-click="product.quantity--">-</button>
</div>

＆＃13;

Answer 1

试试这个

<button type="button" ng-click="product.quantity = product.quantity+1">+</button>
<button type="button" ng-click="product.quantity = product.quantity -1">-</button>

Answer 2

试试这个

＆＃13;

var jimApp = angular.module("mainApp",  []);

jimApp.controller('mainCtrl', function($scope){
});

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>

<div ng-app="mainApp">
<div  ng-controller="mainCtrl">
    <input type="number" ng-model="product.quantity" ng-required class="input-sm">
    <button class="btn btn-xs" type="button" ng-click="product.quantity = (product.quantity +1)">+</button>
    <button class="btn btn-xs" type="button" ng-click="product.quantity = (product.quantity -1)">-</button>
</div>
</div>

＆＃13;

ng-model没有在Angularjs中更新

2 个答案: