Javascript - check for if the button clicked is correct, then create a (response);

luffyy
March 1, 2024
135 views
0 votes
2 Answers

Apology for the trouble. I am trying to learning on creating a simple Quiz. I am trying to get javascript to "listen" to the button’s value clicked, and if it is align with the answer, I want it to create a console.log("correct)".

I had been trying for multiple method to try to prompt an response including which is about creating a function to individually check if which button is clicked then prompt a response. However, i think this is not doable because once the first question is answered correctly, then i didn’t know how to proceed to make the supposedly "correct button" for question 2 to prompt the response. The "correct button" keep get stuck with the "correct button for question 1. Therefore, i am trying different approach which I am trying to get if the button’s value is align the answer then prompt a response.

const myTextArea = document.getElementById("question")
const btnGlobal = document.querySelectorAll("button")
const btnOne = document.getElementById("button-one")
const btnTwo = document.getElementById("button-two")
const btnThree = document.getElementById("button-three")
const btnFour = document.getElementById("button-four")


let questions = [{
    question: "What did you eat today?",
    choiceA: "Fried Noodle",
    choiceB: "Chinese Dumpling",
    choiceC: "Chicken Rice",
    choiceD: "Pan Mee",
    answer: "B",
},
{
    question: "What did you drink today?",
    choiceA: "Carbonate Drinks",
    choiceB: "3 Layer Tea",
    choiceC: "Coffee",
    choiceD: "Milo",
    answer: "D",
},
{
    question: "What did you do today?",
    choiceA: "Jogging",
    choiceB: "Swimming",
    choiceC: "Watching Movie",
    choiceD: "Sleeping",
    answer: "C",
}]

let currentQuestion = 0;

function ansCheck() {
    var selectAns = questions[currentQuestion].answer
    if (target.value == selectAns) {
        console.log("correct");
    } else {
        console.log("wrong");
    }
}

    <div class="main-body">
        <p id="question">Input your question here.</p>
        <div class="btn-list">
            <button class="button" onclick="ansCheck()" id="button-one" value="A" type="submit">Choice A</button>
            <button class="button" onclick="ansCheck()" id="button-two" value="B" type="submit">Choice B</button>
            <button class="button" onclick="ansCheck()" id="button-three" value="C" type="submit">Choice C</button>
            <button class="button" onclick="ansCheck()" id="button-four" value="D" type="submit">Choice D</button>
        </div>

Tags: button javascript

Answers

first: change the html buttons this way:

<button class="button" onclick="ansCheck('A')">Choice A</button>
<button class="button" onclick="ansCheck('B')">Choice B</button>
<button class="button" onclick="ansCheck('C')">Choice C</button>
<button class="button" onclick="ansCheck('D')">Choice D</button>

then change the function:

function ansCheck(userAnswer) {
    var selectAns = questions[currentQuestion].answer
    if (userAnswer == selectAns) {
        console.log("correct");
    } else {
        console.log("wrong");
    }
}

Pass this into your inline click handler

<button class="button" onclick="ansCheck(this);" id="button-one" value="A" type="submit">Choice A</button>
<button class="button" onclick="ansCheck(this);" id="button-two" value="B" type="submit">Choice B</button>
<button class="button" onclick="ansCheck(this);" id="button-three" value="C" type="submit">Choice C</button>
<button class="button" onclick="ansCheck(this);" id="button-four" value="D" type="submit">Choice D</button>

retrieve the currently clicked target from your click event handler

function ansCheck(target) {
    var selectAns = questions[currentQuestion].answer
    if (target.value == selectAns) {
        console.log("correct");
    } else {
        console.log("wrong");
    }
}

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Javascript – check for if the button clicked is correct, then create a (response);

Answers