在小测验中以一组按钮为目标，而不是单击时的所有小测验问题。

Question

更新#1

• 我更新了index.html和scripts.js

剩余问题

如果我点击错误的答案…

• 它没有按一下按钮就可以上课了
• 它给出了is-false类来更正答案和quiz__info

如果我单击右键回答…

• 它不会给is-false类错误答案

scripts.js (新)

var score = 0;

$(document).on("click", ".quiz__response", function(){
    $(this).siblings().addBack().addClass("is--unclickable");
    $(this).siblings().show("quiz__info");  // Show extra info
    console.log("Clicked");

    if ($(this).hasClass("answer--true")) {
        $(this).addClass("is--true");
        $(this).find("i").show();
        $(this).siblings().find("i").show();

        // Update score
        score++
        $(".quiz__correct").html(score);
        $(".quiz__correct--mobile").html(score);
    } else {
        // $(this).addClass("is--false");
        $(this).siblings().addClass("is--false");
        $(this).find("i").show();
        $(this).siblings().find("i").show();
    }
});

index.html (每个问题都有这个结构)

        <div class="quiz__question question-5 question__sports">
            <h3>Question #5</h3>
            <p class="quiz__description">A former PGA Tour winner from Brandon passed away at the age of 63. Can you name him?</p>
            <div class="quiz__responses">
                <button class="quiz__response response-5 answer--false">Billy Casper <i class="fa fa-times"></i></button>
                <button class="quiz__response response-5 answer--false">Rory Woods <i class="fa fa-times"></i></button>
                <button class="quiz__response response-5 answer--true">Dan Halldorson <i class="fa fa-check"></i></button>
                <button class="quiz__response response-5 answer--false">Billy Hurley <i class="fa fa-times"></i></button>

                <div class="quiz__info">
                    <p><span class="answer">A: </span>Halldorson competed for nearly 30 years on the PGA Tour, winning the 1980 Pensacola Open. He also captured the 1986 Deposit Guaranty Golf Classic, which was an unofficial tour stop. All told, he had 28 top 10 finishes in 431 PGA Tour events, pocketing nearly $1.2 million in career earnings.</p>
                </div>
            </div> <!-- .responses -->
        </div> <!-- .question -->

原始问题

目标

我有一个小测验，有25个问题，每个问题有4个可能的答案，.quiz__response。单击按钮时，我希望执行以下操作，但只针对与该特定问题相关的答案，现在正在将以下内容应用于所有问题。

当一个按钮被点击.

• 这四个答案的addClass(".is--unclickable")
• 如果答案为真，.show() .fa-check，如果答案为假，则为.fa-times
• 如果答案正确，addClass(".is--true")将背景更改为绿色，对于其余三个答案，addClass(".is--false")将将背景更改为红色

JSFiddle：https://jsfiddle.net/ub0c6acv/

scripts.js

$(function(){

    /*-------------------------------------
    QUIZ
    --------------------------------------*/

    function showScoreBox() {
        var scrollDepth = $(window).scrollTop();
        var divPosition = $(".quiz__header").offset().top - 45;
        var windowWidth = $(window).width();
        // console.log(windowWidth);

        if (scrollDepth > divPosition && (windowWidth > 768)) {
            $(".quiz__score").show();
            $(".quiz__score--mobile").hide();
        } else {
            $(".quiz__score").hide();
            $(".quiz__score--mobile").show();
        }
    } showScoreBox();

    $(window).on("scroll", function(){
        showScoreBox();
    });

    $(window).on("resize", function(){
        showScoreBox();
    });

    var score = 0;

    $(".quiz__response").on("click", function(){
        $(".quiz__response").addClass("is--unclickable");
        $(".quiz__info").show("quiz__info");  // Show extra info
        console.log("Clicked");

        if ($(this).hasClass("answer--true")) {
            $(this).addClass("is--true");
            $(".fa-check").show();

            // Update score
            score++
            $(".quiz__correct").html(score);
            $(".quiz__correct--mobile").html(score);
        } else {
            $(this).addClass("is--false");
            $(".fa-times").show();
        }
    });

    /*-------------------------------------
    RESET
    --------------------------------------*/

    function resetQuiz() {
      $(".quiz__response").removeClass("answer--true answer--false");
      var score = 0
      $(".quiz__correct").html(score);
      $(".quiz__correct--mobile").html(score);
    }

    $(".button__reset").on("click", function(){
     resetQuiz();
    });

    /*-------------------------------------
    CONFETTI
    --------------------------------------*/

    function rainConfetti() {

        if (score === 25) {
            canvas.show()
        }
    }

    /*-------------------------------------
    SMOOTH SCROLL
    --------------------------------------*/

    $('a[href*=#]:not([href=#])').click(function() {
        if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'') && location.hostname == this.hostname) {
            var target = $(this.hash);
            target = target.length ? target : $('[name=' + this.hash.slice(1) +']');
            if (target.length) {
                $('html,body').animate({
                    scrollTop: target.offset().top
                }, 1000);
                return false;
            }
        }
    });
});

index.html (问答片段)

  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css">

  <div class="quiz">
            <div class="quiz__score">
                <p><span class="quiz__correct">0</span> / 25</p>
            </div>

            <h2 class="quiz__header" id="top">Take the quiz</h2>
            <p class="credit">How well have you been paying attention to what's been happening in southwestern Manitoba in 2015? Take our 25-question quiz to test your local news knowledge.</p>

            <div class="quiz__questions">
            <!-- <canvas id="confetti"></canvas> -->
                <!-- Question -->
                <div class="quiz__question question-1 question__sports">
                    <div class="wrapper">
                        <!-- <img src="http://placehold.it/500x300" alt="" class="quiz__image"> -->
                    </div>
                    <h3>Question #1</h3>
                    <p class="quiz__description">What Brandon Wheat King, who was drafted by the New York Islanders, lost his desire to play hockey and walked away from the team prior to this season starting?</p>
                    <div class="quiz__responses">
                        <button class="quiz__response answer--false">Kale Clague <i class="fa fa-times"></i></button>
                        <button class="quiz__response answer--false">Macoy Erkamps <i class="fa fa-times"></i></button>
                        <button class="quiz__response answer--true">Ryan Pilon <i class="fa fa-check"></i></button>
                        <button class="quiz__response answer--false">Colin Cloutier <i class="fa fa-times"></i></button>


                        <!-- The six­-foot-­two, 212­pound rearguard had 11 goals and 41 assists in 68 regular­ season games, with a goal and 11 assists in 19 playoff contests last season, paired mainly with Russian Ivan Provorov. In 193 regular­season games with Brandon and the Lethbridge,Hurricanes, Pilon has 23 goals, 93 assists and 116 penalty minutes. -->

                    </div> <!-- .responses -->
                </div> <!-- .question -->

                <!-- Question -->
                <div class="quiz__question question-2 question__sports">
                    <div class="wrapper">
                        <!-- <img src="http://placehold.it/500x300" alt="" class="quiz__image"> -->
                    </div>
                    <h3>Question #2</h3>
                    <p class="quiz__description">Which former Brandon skip refused to talk to the local media after losing his fifth provincial men’s curling championship game in six years at Westman Place?</p>
                    <div class="quiz__responses">
                        <button class="quiz__response answer--false">Russ Howard <i class="fa fa-times"></i></button>
                        <button class="quiz__response answer--false">Kerry Burtnyk <i class="fa fa-times"></i></button>
                        <button class="quiz__response answer--true">Mike McEwen <i class="fa fa-check"></i></button>
                        <button class="quiz__response answer--false">Braden Calvert <i class="fa fa-times"></i></button>
                    </div> <!-- .responses -->
                </div> <!-- .question -->

                <!-- McEwen’s Winnipeg based team of B.J. Neufeld, Matt Wozniak and Denni Neufeld lost to Ried Carruthers 5­3 at the Safeway Championship hosted by Brandon. -->
        </div> <!-- quiz -->

Answer 1

首先，可以使用事件委托区段直接和委托事件来绑定单个事件处理程序，而不是为每个按钮绑定一个事件处理程序。

$(".quiz__response").on("click", function(){

$(document).on("click", ".quiz__response", function(){

若要仅在与特定问题相关的答案上添加.is--unclickable，请更改$(".quiz__response").addClass("is--unclickable");

至

$(this).siblings().addBack().addClass("is--unclickable");

或

$(this).parent().children().addClass("is--unclickable");

若要显示fa-times或fa-check，请更改

$(".fa-check").show();

$(".fa-times").show();

(在if和$(this).find("i").show();语句中)

并将$(this).siblings().addClass("is--false");添加到您的if语句中，如果选中正确的答案，则将其余的答案涂上红色。

编辑

完全js更改

  $(document).on("click", ".quiz__response", function() {
    $(this).siblings("button").addBack().addClass("is--unclickable");
    $(this).siblings(".quiz__info").show(); // Show extra info
    console.log("Clicked");

    if ($(this).hasClass("answer--true")) {
      $(this).addClass("is--true");
      $(this).siblings("button").addBack().find("i").show();
      $(this).siblings("button").addClass("is--false");

      // Update score
      score++
      $(".quiz__correct").html(score);
      $(".quiz__correct--mobile").html(score);
    } else {
      $(this).addClass("is--false");
      $(this).find("i").show();
    }
  });