Javascript TypeError:无法读取属性'；推动'；未定义的

我试图将“currentBall”对象推入“currentOver.balls”数组

$scope.currentOver.balls.push($scope.currentBall);

运行上述代码之前两个对象的当前状态（来自开发工具）：

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我收到一个错误：

无法读取未定义的属性“push”

。但是很明显，“$scope.currentOver.balls”数组已经定义，所以这里发生了什么？

很难从您引用的“当前状态”中分辨出来，因为我怀疑重要的缩进已经丢失，但它看起来像是

currentOver

，作为一个数组，包含一个带有

balls

属性的条目（而不是拥有自己的

balls

属性）。因此：

让我想到的关键点是：

$scope.currentOver: Array[1] <== Here, we're seeing that it's an array with one entry 0: Object <== This looks like it's about to show us what that entry is balls: Array[0] <== And so I suspect this is in the entry, not the array bowlerId: 0 ...

---

$scope.currentOver:Array[1]啊，当然-这是有道理的。实际上我不希望

currentOver

成为一个数组，而是一个对象。非常感谢您的帮助

$scope.currentOver[0].balls.push($scope.currentBall);

$scope.currentOver: Array[1] <== Here, we're seeing that it's an array with one entry 0: Object <== This looks like it's about to show us what that entry is balls: Array[0] <== And so I suspect this is in the entry, not the array bowlerId: 0 ... $scope.currentOver: Array[1] 0: Object balls: Array[0] bowlerId: 0 ...