Question

我正在尝试在AngularJS应用程序中的javascript中创建和初始化二维数组，如下所示：

$scope.invalidVote = [];
for (var i = 0; i < $scope.arry1.length; i += 1) {
    $scope.answersCount[i] = $scope.arry1[i].arry2.length;

    for(var j = 0; j < $scope.arry1[i].arry2.length; j += 1) {
        $scope.invalidVote[i][j] = false;
    }
}

但它不起作用，这样做的正确方法是什么？

Answer 1

试试这个：

$scope.invalidVote = [];
for (var i = 0; i < $scope.arry1.length; i++) {
    $scope.answersCount[i] = $scope.arry1[i].arry2.length;
    $scope.invalidVote[i] = [];

    for(var j = 0; j < $scope.arry1[i].arry2.length; j++) {
        $scope.invalidVote[i][j] = false;
    }
 }

Answer 2

我假设$scope.arry1[i]是一个包含其他数组且已填充值的数组。所以你的代码应该是这样的：

$scope.invalidVote = $scope.arry1;
for (var i = 0; i < $scope.arry1.length; i += 1) 
  {
    $scope.answersCount[i] = $scope.arry1[i].length;
    for(var j = 0; j < $scope.arry1[i].length; j += 1)
      {
        $scope.invalidVote[i][j] = false;
      }
  }

＆＃39; $ scope.invalidVote = $ scope.arry1;＆＃39;声明＆＃34; invalidVote＆＃34;像这样确保它包含相同数量的索引。

在javascript中创建并初始化二维数组

2 个答案: