AngularJS SPA编辑按钮功能

Question

我是 AngularJS 的新手，目前我正在尝试创建一个用于跟踪费用的水疗中心作为一个简单的项目，但我的代码存在一些问题。

我设法完成了大部分功能，但我卡在了编辑按钮和编辑功能上。我正在尝试制作内联编辑功能，因为我已经有了表单输入。

这里是html和js代码：

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Expenses Tracker</title>
    <link rel="stylesheet" href="bootstrap.min.css">
    <link href="style.css" rel="stylesheet">
</head>
<body>
    <nav class="navbar navbar-default navbar-fixed-top" role="navigation">
        <div class="container">
            <div class="navbar-header">
                <span class="navbar-brand"><img src="logo.png" class="brand" height="40" />
                 Simple Expenses App Tracker</span>
            </div>
        </div>
    </nav>

    <div class="main" ng-app="myList" ng-controller="myListController">

        <img src="logo.png" class="logo">
        
    <form ng-submit="newItem()" class="form">
        <input required type="number" placeholder="Amount" ng-model="amount">
        <input required type="text" placeholder="Description" ng-model="description">
        <input type="submit" value="Submit" class="btn btn-success">
    </form>
        <ul>
            <li ng-repeat="item in items">
                <span  class="pull-left"> {{item.amount}} den.</span> {{item.description}}
                <span class="buttons">
                    <input type="button" value="Edit" class="btn btn-primary" >
                    <input type="button" ng-click="deleteItem($index)" value="Delete" class="btn btn-danger">
                </span>
            </li>
            <br>
            <li><span class="total">{{totalPrice()}} den.</span> <span class="expense"> Total Expenses</span></li>
        </ul>
        
    </div>


    <script src="bootstrap.min.js"></script>
    <script src="angular.min.js"></script>
    <script src="angular-route.min.js"></script>
    <script src="app.js"></script>
</body>
</html>

var myApp = angular.module("myList", []);

myApp.controller("myListController", function($scope) {
    $scope.items = [];

    $scope.newItem = function() {
        $scope.items.push({description:$scope.description, amount: $scope.amount});
        $scope.description = '';
        $scope.amount = 0
    };

    $scope.deleteItem = function(index) {
        $scope.items.splice(index, 1);
    }

    $scope.totalPrice = function() {
        var total = 0;
        for(count=0; count<$scope.items.length;count++){
            total += $scope.items[count].amount;
        }
        return total;
    };

});

Answer 1

您可以尝试类似的方法：

$scope.editItem = function(index) {
    $scope.amount = $scope.items[index].amount;
    $scope.description = $scope.items[index].description;
    $scope.deleteItem(index);
}

我也推荐你看这本书： https://www.newline.co/ng-book/modern-ng1/

尝试不再将 $scope 用于绑定和用户组件。除非你真的不关心这个项目的去向。

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