Question

我有一个数组 - $scope.question = [];，用于存储从网络API获取的数据：id，question和correctAnswer

        quizService.getQuestions(id).success(function (data) {
            $scope.question = data;
        });

而且，我还有另一个数组，用户回答问题：

    $scope.binding = {
        answers: {}
    };

    $scope.setAnswer = function (answer, id) {
        $scope.binding.answers[id] = answer;
    };

问题是，如何从数组中获取数据并进行比较？

    $scope.question[id]
    $scope.question[correctAnswer]

这是正确的实现吗？

   if ($scope.binding.answers[id] == $scope.question[id] && $scope.binding.answer[answer] == $scope.question[correctAnswer]) {
          ...
    }

P.S。我是angularjs的新手。

更新1：更多数据 函数控制器（$ scope，quizService）{

    $scope.currentAnswer = null;
    //Set the answer from radio buttons
    $scope.setAnswer = function (answer, id) {
        $scope.binding.answers[id] = answer;
    };
    $scope.question = [];
    $scope.binding = {
        answers: {}
    };

    updQuestion();

    function updQuestion() {
        var id = 1;

       //Get the question
        quizService.getQuestions(id).success(function (data) {
            $scope.question = data;
        });

        //Button to get next question
        $scope.nextQuestion = function () {
            id++;
            quizService.getQuestions(id).success(function (data) {
                $scope.question = data;
                $scope.currentAnswer = $scope.binding.answers[id];
            });
        };

     //Submit button when user passed all questions
     $scope.onSubmit = function () {

            quizService.postResult().sucess(function () {

                for (var i = 0; i < $scope.question.length; i++) {

                    if ($scope.binding.answers[id] == $scope.question[id] && $scope.binding.answer[answer] == $scope.question[correctAnswer]) {
                        numbOfCorrectAnswers++;
                    }
                    $scope.question.push(numbOfCorrectAnswers);
                }
            });
        };

更新2

所以，我尝试使用2 for for循环和forEach，无论如何都无法从数组中的对象中获取值。

 $scope.onSubmit = function () {
                var numbOfCorrectAnswers = 0;
                var answers = null;
                var n = 0;
                var b = 0;
                var questions;
                for (n = 0; n < $scope.getQuestions.lenght; n++) {
                    for (b = 0; b < $scope.binding.answers.lenght; b++) {
                    var questions = $scope.getQuestions[n];
                    var getAnswer = $scope.binding.answer[n];
                    if (questions.Id == getAnswer.id && questions.CorrectAnswer == getAnswer.answer) {
                        numbOfCorrectAnswers++;
                    }

                });

Answer 1

您可以像这样比较两个数组：

$scope.name.Xarray[i] == $scope.name.Yarray[n]，其中i是数组中的数字。

然后你必须知道你有两个数组的迭代。您可以使用for或while循环。例如：

  for ( n in $scope.Xarray.lenght ) {
    for ( i in $scope.Yarray.lenght ) {
      Xarray[n] == Yarray[i]
    }
  }

这只是一个例子，并不意味着就是这样，但你继续这些信息。

如何比较两个数组

1 个答案: