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[英]Is it possible to initialize a bidimensional array in javascript like in java?
[英]Create and initialize bidimensional array in javascript
我试图在AngularJS应用程序中的javascript中创建和初始化一个二维数组,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;
}
}
但这是行不通的,正确的方法是什么?
尝试这个:
$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++) {
$scope.invalidVote[i][j] = false;
}
}
我假设$scope.arry1[i]
是一个包含其他数组的数组,并且已经填充了值。 因此,您的代码应如下所示:
$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)
{
$scope.invalidVote[i][j] = false;
}
}
'$ scope.invalidVote = $ scope.arry1;' 像这样声明“ invalidVote”,以确保它包含相同数量的索引。
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