无法读取未定义Javascript的属性"推送"

Question

嗨,它接缝像我不能推我的阵列？码:

  $scope.arrResult = [];
  dpd.timesheets.get( function (result) {
    console.log(result);

    for (i = 0, n = result.length; i < n; i++) {
      var item = result[i];
      $scope.arrResult[item.week].push(item);
    }
    console.log($scope.arrResult);

  });

我收到此控制台错误

Uncaught TypeError: Cannot read property 'push' of undefined

如果我设置$scope.arrResult[item.week].push(item); to $scope.arrResult[item.week] = item; 它没有错误但我需要/想要推,但是错了吗？

Answer 1

这是因为

$scope.arrResult[item.week]

本身不是一个数组.

push()是Array.prototype

看看我的意思,试试吧

$scope.arrResult[item.week] = [];

要么

$scope.arrResult[item.week] = new Array();

然后试试 push()