【ng-repeat中产生的$$hashKey键值对表示什么 _angular基础】

ng-repeat中产生的$$hashKey键值对表示什么

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angular基础

详细描述

截图

代码

<body ng-app="myApp" ng-controller="myCtrl">
    <div ng-repeat="item in items track by $index" class="box" ng-style="{background:items[$index].bgc}" ng-click="change($index)"></div>
</body>
<script>
    var myApp = angular.module('myApp', [])
    myApp.controller('myCtrl', ['$scope', function ($scope) {
        $scope.color = "red"
        $scope.items = [
            { id: 1, bgc: "red" },
            { id: 2, bgc: "red" },
            { id: 3, bgc: "red" },
            { id: 4, bgc: "red" },
            { id: 5, bgc: "red" },
            { id: 6, bgc: "red" },
            { id: 7, bgc: "red" },
            { id: 8, bgc: "red" },
            { id: 9, bgc: "red" },
        ]
console.log($scope.items)  
$scope.change = function (a) {
    for (i= 0;i<9;i++){
        $scope.items[i].bgc = "red"  
    };   
    $scope.items[a].bgc = "blue"; 
    console.log(a) ;
    console.log($scope.items[a])
};
}])
</script>

编辑于2024-05-19