Learning-Archive/HTML/WebProgramming/read_multiple_checkbox.html at main · GthingkingG/Learning-Archive · GitHub

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<!DOCTYPE html>
<html>
<head>
    <title>DOM Basic</title>

</head>
<body>
    <input type="checkbox" class="check" value = 100>
    <label>100원</label> <br>
    <input type="checkbox" class="check" value = 300>
    <label>300원</label> <br>
    <input type="checkbox" class="check" value = 500>
    <label>500원</label> <br>
    <input type="checkbox" class="check" value = 1000>
    <label>1000원</label> <br>
    <input type="checkbox" class="check" value = 5000>
    <label>5000원</label> <br>
    <input type="checkbox" class="check" value = 10000>
    <label>10000원</label> <br>
    <input type="button" id="myButton" value="계산" onclick="getCheckbox()"><br>
    <script>
        function getCheckbox() {
            let checkboxes = document.getElementsByClassName("check");
            let sum = 0;
            for(let i=0; i<checkboxes.length;i++){
                if(checkboxes[i].checked) {
                    sum += parseInt(checkboxes[i].value);
                    alert('체크하신 금액은 ' + checkboxes[i].value + ' 원 입니다.');
                }
            }
            alert('총 금액은 ' + sum + ' 원 입니다.')
        }
    </script>

</body>
</html>

//각각 가격을 출력하는 코드를 추가하였고, 더 많은 금액을 선택할 수 있도록 바꿈