📌 html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>실습문제2 색 변경</title>
<script src="js/jquery-3.7.0.min.js"></script>
<style>
.area{
width: 100px;
height: 100px;
border: 1px solid black;
box-sizing: border-box;
}
.inputColor{
box-sizing: border-box;
width: 100px;
padding: 0;
margin: 0;
}
.div2{
display: inline-block;
}
.box{
display: inline-block;
}
</style>
</head>
<body>
<div class="area" id="box1"></div>
<input type="text" class="inputColor" id="input1"><br>
<button type="button" id="btn1">색 변경</button>
<script>
$("#btn1").on("click", function(){
$("#box1").css("backgroundColor", $("#input1").val());
})
</script>
<hr>
<div class="area div2"></div>
<div class="area div2"></div>
<div class="area div2"></div>
<div class="area div2"></div>
<div class="area div2"></div>
<div class="area div2"></div>
<div>
<input type="text" class="inputColor input2">
<input type="text" class="inputColor input2">
<input type="text" class="inputColor input2">
<input type="text" class="inputColor input2">
<input type="text" class="inputColor input2">
<input type="text" class="inputColor input2">
</div>
<button type="button" id="btn2">색변경</button>
<script>
$("#btn2").on("click", function(){
const divArr= $(".div2");
const inputArr = $(".input2");
for(let i=0; i<divArr.length; i++){
$(divArr[i]).css("backgroundColor", $(inputArr[i]).val());
}
})
</script>
<hr>
<div class="box">
<div class="area div3"></div>
<input type="text" class="inputColor input3">
</div>
<div class="box">
<div class="area div3"></div>
<input type="text" class="inputColor input3">
</div>
<div class="box">
<div class="area div3"></div>
<input type="text" class="inputColor input3">
</div>
<div class="box">
<div class="area div3"></div>
<input type="text" class="inputColor input3">
</div>
<div class="box">
<div class="area div3"></div>
<input type="text" class="inputColor input3">
</div>
<div class="box">
<div class="area div3"></div>
<input type="text" class="inputColor input3">
</div>
<script>
// [내 코드]
// $(".input3").on("input", function(){
// const div3Arr = $(".div3");
// const input3Arr = $(".input3");
// for(let i=0; i<div3Arr.length; i++){
// $(div3Arr[i]).css("backgroundColor", $(input3Arr[i]).val());
// $(input3Arr[i]).css("border", "1px solid " + $(input3Arr[i]).val());
// }
// })
$(".input3").on("input", function(){
$(this).css("borderColor", $(this).val());
$(this).prev().css("backgroundColor", $(this).val());
})
</script>
</body>
</html>🔎 출력 화면
풀스택 개발자 기록집 📁