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javascript - 带有错误行为的单选按钮的 jQuery 测验

转载 作者:行者123 更新时间:2023-12-03 07:44:39 28 4
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我正在写一个简单的在线测验。有四个单选按钮作为选择。最初,脚本仅填充第一个问题的选项。之后,用户应该选择下一个并单击按钮。如果答案与正确的匹配,则总数递增。否则,将加载下一个问题。提交第 10 个问题后,将加载结果。问题从包含十个名为“pitanja”的对象的数组中加载。 quNo 是问题编号,opt1 到 opt 4 是选项文本,corrNo 是正确的选项编号。

但是如果用户没有选择任何内容,则有一个条件,但它不会起作用。测验继续进行,每次都会设置第四个选择。即使选择其他内容,下一个默认情况下仍然是 4。也许也是那个...此外,它总是说成功率为 30%,这对应于 10 个正确 d 中的 3 个...

我知道这根本不复杂,但我在这里很困惑......我哪里出错了?

$(document).ready(function() {
var pitanja = [{
"quNo": 1,
"opt1": "a",
"opt2": "b",
"opt3": "c",
"opt4": "d",
"corrNo": 2
}, {
"quNo": 2,
"opt1": "a",
"opt2": "b",
"opt3": "c",
"opt4": "d",
"corrNo": 4
}, {
"quNo": 3,
"opt1": "a",
"opt2": "b",
"opt3": "c",
"opt4": "d",
"corrNo": 2
}, {
"quNo": 4,
"opt1": "a",
"opt2": "b",
"opt3": "c",
"opt4": "d",
"corrNo": 4
}, {
"quNo": 5,
"opt1": "a",
"opt2": "b",
"opt3": "c",
"opt4": "d",
"corrNo": 1
}, {
"quNo": 6,
"opt1": "a",
"opt2": "b",
"opt3": "c",
"opt4": "d",
"corrNo": 3
}, {
"quNo": 7,
"opt1": "a",
"opt2": "b",
"opt3": "c",
"opt4": "d",
"corrNo": 2
}, {
"quNo": 8,
"opt1": "a",
"opt2": "b",
"opt3": "c",
"opt4": "d",
"corrNo": 1
}, {
"quNo": 9,
"opt1": "a",
"opt2": "b",
"opt3": "c",
"opt4": "d",
"corrNo": 4
}, {
"quNo": 10,
"opt1": "a",
"opt2": "b",
"opt3": "c",
"opt4": "d",
"corrNo": 3
}];

//****************************************************//

var corrTotal = 0; // total correct answers
var qNumber = 0; // current question number
var currentChoice = 0; //current answer choice

function popuniPitanja(qNumber) {
var qu = pitanja[qNumber]; //current question, by array index
$("#quizz-question-no").text("Question " + qu["quNo"]);
$("#label1").text(qu["opt1"]);
$("#label2").text(qu["opt2"]);
$("#label3").text(qu["opt3"]);
$("#label4").text(qu["opt4"]);
}

function proveriOdgovor(choice, corr) { // choice is the selected value, corr is the current question correct value
if (parseInt(choice) === corr) {
corrTotal++;
} //if selected and correct value match, increment total correct
}

function sacuvajIzbor() { //save user choice
if ($("#opt1").prop("checked", true)) {
currentChoice = 1
};
if ($("#opt2").prop("checked", true)) {
currentChoice = 2
};
if ($("#opt3").prop("checked", true)) {
currentChoice = 3
};
if ($("#opt4").prop("checked", true)) {
currentChoice = 4
};
}

function ucitajRezultate() { // loads quizz results
var average = corrTotal * 10; // divide by total (10 questions) and multiply by a 100 for percents
$("#quizz-warn").hide();
$("#quizz-form").html("Broj tačnih odgovora: " + corrTotal + ", što je: " +
average + "%"); //erase quizz form and display results
}

$("button").click(function() { //handle user submit
var correctAnswer = pitanja[qNumber]["corrNo"]; //save the number of curent correct answer
sacuvajIzbor(); //save user choice
if (currentChoice < 1 || currentChoice > 4) { //if choice isn't 1 or 2 or 3 or 4, user didn't choose at all
$("#quizz-warn").text("Molimo izaberite odgovor :)"); //warn user to choose an answer
} else {
proveriOdgovor(currentChoice, correctAnswer); //check user answer and act accordingly
if (qNumber === 9) { //if question number is 9, it is 10th question, so display results
ucitajRezultate(); //display results
} else { //if it's not, move on to the next question
popuniPitanja(++qNumber); //load next question
currentChoice = 0; //reset current choice to 0
}
}
});

popuniPitanja(qNumber); //initially, load the first question (qNumber is 0 by default)
});
<html lang="sr">

<head>
<meta charset="utf-8">
<title>The quizz</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
</head>
<div id="quizz-form">
<span id="quizz-title">Quizz text: </span>
<p id="quizz-question-no"></p>
<form>
<input type="radio" name="quizz-opt" id="opt1" value="1">
<label class="opt-txt" for="opt1" id="label1"></label>
<br>
<!--option 1 end-->
<input type="radio" name="quizz-opt" id="opt2" value="2">
<label class="opt-txt" for="opt2" id="label2"></label>
<br>
<!--option 2 end-->
<input type="radio" name="quizz-opt" id="opt3" value="3">
<label class="opt-txt" for="opt3" id="label3"></label>
<br>
<!--option 3 end-->
<input type="radio" name="quizz-opt" id="opt4" value="4">
<label class="opt-txt" for="opt4" id="label4"></label>
<br>
<!--option 4 end-->
<button type="button">Dalje</button>
</form>
<div id="quizz-warn"></div>
</div>
<script src="kviz.js"></script>
</body>

</html>

我知道有些名字不是英文,但我不认为我必须寻求帮助,在这一点上我不敢全部更改:)希望评论有所帮助...

fiddle :https://jsfiddle.net/dzenesiz/2uxba6sz/

最佳答案

问题出在您的 currentChoice if 语句中。您应该像这样更改它:

if ($("#opt1").prop("checked")) {
currentChoice = 1
};

而不是

if ($("#opt1").prop("checked", true)) {
currentChoice = 1
};

简单地说,您将所有选项设置为checked .prop("checked", true)。现在,它检查该选项。如果选择它,currentChoice 会更新,并且您的用户在不回答当前问题的情况下将无法移至下一个问题。

为了使其功能更强大,您需要在用户选择选项时删除错误消息。因此,我将 $("#quizz-warn").text("Molimo izaberite odgovor :)"); 添加到按钮单击事件的 else 语句中。要重置选项,只需将其添加到相同的 else 语句中:

$("input").prop("checked",false);

查看JSFIDDLE

关于javascript - 带有错误行为的单选按钮的 jQuery 测验,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/35261266/

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