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console.log에 오류가 뜨는데 왜그런걸까요?
undefined주차
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답변 완료
* 겪고 있는 문제 상황을 최대한 자세하게 작성해주세요.
* 문제 해결을 위해 어떤 시도를 해보았는지 구체적으로 함께 알려주세요.
console.log에 오류가 뜨는데 왜그런걸까요?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js"
integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM"
crossorigin="anonymous"></script>
<title>초미니홈피 - 팬명록</title>
<link href="https://fonts.googleapis.com/css2?family=Noto+Serif+KR:wght@200;300;400;500;600;700;900&display=swap"
rel="stylesheet">
<style>
* {
font-family: 'Noto Serif KR', serif;
}
.mypic {
width: 100%;
height: 300px;
background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://i.ibb.co/nQ0gqhw/00.jpg');
background-position: center 30%;
background-size: cover;
color: white;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
}
.mypost {
width: 95%;
max-width: 500px;
margin: 20px auto 20px auto;
box-shadow: 0px 0px 3px 0px black;
padding: 20px;
}
.mypost > button {
margin-top: 15px;
}
.mycards {
width: 95%;
max-width: 500px;
margin: auto;
}
.mycards > .card {
margin-top: 10px;
margin-bottom: 10px;
}
</style>
<script>
$(document).ready(function(){
set_temp()
show_comment()
});
function set_temp(){
$.ajax({
type: "GET",
url: "http://spartacodingclub.shop/sparta_api/weather/seoul",
data: {},
success: function (response) {
$('#temp').text(response['temp'])
}
})
}
function save_comment(){
$.ajax({
type: 'POST',
url: '/homework',
data: {sample_give:'데이터전송'},
success: function (response) {
alert(response['msg'])
window.location.reload()
}
})
}
function show_comment(){
$.ajax({
type: "GET",
url: "/homework",
data: {},
success: function (response) {
let rows = response['comments']
for (let i = 0; i < rows.length; i++) {
let name = rows[i]['name']
let comment = rows[i]['comment']
console.log(name, comment)
}
}
});
}
</script>
</head>
<body>
<div class="mypic">
<h1>소룡이 편지함 📮 </h1>
<p>현재기온: <span id="temp">36</span>도</p>
</div>
<div class="mypost">
<div class="form-floating mb-3">
<input type="text" class="form-control" id="name" placeholder="url">
<label for="floatingInput">닉네임</label>
</div>
<div class="form-floating">
<textarea class="form-control" placeholder="Leave a comment here" id="comment"
style="height: 100px"></textarea>
<label for="floatingTextarea2">남길 메세지</label>
</div>
<button onclick="save_comment()" type="button" class="btn btn-dark">저장하기</button>
</div>
<div class="mycards" id="comment-list">
<div class="card">
<div class="card-body">
<blockquote class="blockquote mb-0">
<p>새로운 앨범 너무 멋져요!</p>
<footer class="blockquote-footer">호빵맨</footer>
</blockquote>
</div>
</div>
<div class="card">
<div class="card-body">
<blockquote class="blockquote mb-0">
<p>새로운 앨범 너무 멋져요!</p>
<footer class="blockquote-footer">호빵맨</footer>
</blockquote>
</div>
</div>
<div class="card">
<div class="card-body">
<blockquote class="blockquote mb-0">
<p>새로운 앨범 너무 멋져요!</p>
<footer class="blockquote-footer">호빵맨</footer>
</blockquote>
</div>
</div>
</div>
</body>
</html>
ddd위는 파이참 index.html 이고
아래는 크롬 console.log 오류창입니다.
(index):97
Uncaught TypeError: Cannot read properties of undefined (reading 'length')
at Object.success ((index):97:46)
at c (jquery.min.js:2:28294)
at Object.fireWith [as resolveWith] (jquery.min.js:2:29039)
at l (jquery.min.js:2:79800)
at XMLHttpRequest.<anonymous> (jquery.min.js:2:82254)
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