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2019/JavaScript

JS addEventListner 이용해서 checkbox 전체선택

by SOLYI 2019. 12. 9.

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <script>
        window.onload=function(){
            document.getElementById('allche').addEventListener('click'function(){
                let ck = document.getElementsByName('ck1');
                if(this.checked==true){
                    console.log('t1');
                    for(let i=0;i<ck.length;i++){
                        ck[i].checked=true;
                    }
                }else{
                    console.log('t2');
                }
            }
        )};
    </script>
</head>
<body>
    <form>
        <label for="allche">전체체크</label>
        <input type="checkbox" id="allche" name="allche" value="allche"><br>
<br><br>
        <label for="jch">java</label>
        <input type="checkbox" name="ck1"><br>
        <label for="jspch">jsp</label>
        <input type="checkbox" name="ck1" id="jsp"><br>
        <label for="jch">php</label>
        <input type="checkbox" name="ck1" id="php"><br>
        <label for="jch">asp</label>
        <input type="checkbox" name="ck1" id="asp"><br>
        
    </form>
</body>
</html>
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