如果单击按钮,我会尝试调用方法removePlayer(playerId)
。但是,该方法不会被调用,或者至少其中的语句没有被触发,因为我在顶部放置了console.log()
语句。
控制台是空的,所以我真的很无能为力。这是我的代码:
控制器:
function appController($scope) {
$scope.players = [];
var playercount = 0;
$scope.addPlayer = function(playername) {
$scope.players.push({name: playername, score: 0, id: playercount});
playercount++;
}
function getIndexOfPlayerWithId(playerId) {
for (var i = $scope.players.length - 1; i > -1; i--) {
if ($scope.players[i].id == playerId)
return i;
}
}
$scope.removePlayer = function(playerId) {
console.log("remove");
var index = getIndexOfPlayerWithId(playerId);
$scope.players.slice(index, 1);
}
}
appController.$inject = ['$scope'];
HTML:
...
<table id="players">
<tr ng-repeat="player in players">
<td>{{player.name}}</td>
<td>{{player.score}}</td>
<td><button ng-click="removePlayer({{player.id}})">Remove</button></td>
</tr>
</table>
...
答案 0 :(得分:38)
您不应该在ng-click表达式中使用花括号({{ }}
)。你应该写:
<button ng-click="removePlayer(player.id)">Remove</button>
答案 1 :(得分:4)
ng-repeat
会创建一个新范围,因此它不知道removePlayer
是什么。你应该可以这样做:
<table id="players">
<tr ng-repeat="player in players">
<td>{{player.name}}</td>
<td>{{player.score}}</td>
<td><button ng-click="$parent.removePlayer({{player.id}})">Remove</button></td>
</tr>
</table>
请参阅https://groups.google.com/forum/?fromgroups=#!topic/angular/NXyZHRTAnLA
答案 2 :(得分:-1)
如上所述,ng-repeat创建了自己的范围,外部控制器范围不可用。但是因为在JS中你使用真正的对象写这样的东西:
<tr ng-repeat="player in players">
<td>{{player.name}}</td>
<td>{{player.score}}</td>
<td><button ng-click="player.removePlayer()">Remove</button></td>
</tr>
事先,在控制器初始化的某个地方,您可以为每个玩家对象分配“removePlayer”功能,并自然地编码您想要的任何内容,从而间接访问外部控制器。