Question

我为我做的测验写了一个percentageCorrect函数但是当我调用我的函数时它返回了错误的百分比。此外，我有一个秒计时器，但我无法弄清楚如何每60秒增加分钟。我尝试使用if语句，for循环等。下面是我的Jquery代码。请帮忙，谢谢！

var minutes = 0;
var seconds = 0;
var intervalId;
var correct = 0;
var incorrect = 0;
var timeSpent;

$(document).ready(function(){
    $("#results").addClass('hide');
    $('#questions').addClass('hide');
$('#startTrivia').on('click', function(){
    $('#questions').removeClass('hide');
    startTimer();
});

$("#submit").on('click', function(){
    $(".jumbotron").addClass('hide');
    $("#questions").addClass('hide');
    //get the number of correct... :checked is what the user checked
    var numberCorrect = $('input[data-correct="correct"]:checked').length;
    var numberIncorrect = 10 - numberCorrect;
    //puts in the html what questions were correct vs incorrect
    $('#correct').html(numberCorrect);
    $("#incorrect").html(numberIncorrect);
    timeSpent = "It took you " + minutes + " minutes and " + seconds + " seconds to complete the Thanksgiving Trivia!"
    $("#timeTaken").html(timeSpent);
    //calculating percentage of correct answers
    $("#totalPercent").html("You got " + percentCorrect(numberCorrect, numberIncorrect) + "% on the test!");
    //results will show after pushing submit
    $("#results").removeClass('hide');  
});

//timer pauses after clicking pause timer
$("#pauseGame").on('click', function(){
    pauseTimer();
    $("#questions").addClass('hide');
 });

//timer resets after clicking reset timer
$('#restart').on('click', function(){
    resetGame();        
    $("#questions").addClass('hide');
    $("#results").addClass('hide');
    $(".jumbotron").removeClass('hide');
    //clearing the checked radio buttons
    $("input:checked").removeAttr("checked");
    });
 });

// NOT GIVING CORRECT PERCENTAGE?
function percentCorrect(x, y) {
    return Math.round((x/y)*100);
};

// CAN'T FIGURE OUT HOW TO MAKE MINUTES INCREASE EVERY 60 SECONDS?
function totalTime() {
    seconds++;
    $('#seconds').html(seconds);    
};

function pauseTimer() {
    clearInterval(intervalId);
};

function startTimer() {
    intervalId = setInterval(totalTime, 1000);
};

function resetGame() {
    seconds = -1;
    totalTime();
    this.clearInterval(intervalId);
};

Answer 1

您似乎错误地计算了自己的百分比。它应该是：

percentageCorrect = (totalCorrect / totalQuestions) * 100

另外，为了计算分钟数：

if(seconds % 60  == 0) minutes++;

Jquery测验百分比不正确

1 个答案: