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1. 코드
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>LocalStorage</title>
<link rel="stylesheet" href="style.css" />
</head>
<style>
html {
box-sizing: border-box;
background: url("https://www.gyeongju.go.kr/upload/content/thumb/20200529/4368708A9CC649CDB1EC5DD0C389804C.jpg") center no-repeat;
background-size: cover;
min-height: 100vh;
display: flex;
justify-content: center;
align-items: center;
text-align: center;
font-family: Futura, "Trebuchet MS", Arial, sans-serif;
}
*,
*:before,
*:after {
box-sizing: inherit;
}
svg {
fill: white;
background: rgba(0, 0, 0, 0.1);
padding: 20px;
border-radius: 50%;
width: 200px;
margin-bottom: 50px;
}
.wrapper {
padding: 20px;
max-width: 350px;
background: rgba(255, 255, 255, 0.95);
box-shadow: 0 0 0 10px rgba(0, 0, 0, 0.1);
}
h2 {
text-align: center;
margin: 0;
font-weight: 200;
}
.plates {
margin: 0;
padding: 0;
text-align: left;
list-style: none;
}
.plates li {
border-bottom: 1px solid rgba(0, 0, 0, 0.2);
padding: 10px 0;
font-weight: 100;
display: flex;
}
.plates label {
flex: 1;
cursor: pointer;
}
.plates input {
display: none;
}
.plates input + label:before {
content: "⬜️";
margin-right: 10px;
}
.plates input:checked + label:before {
content: "🌮";
}
.add-items {
margin-top: 20px;
}
.add-items input {
padding: 10px;
outline: 0;
border: 1px solid rgba(0, 0, 0, 0.1);
}
</style>
<body>
<!--
Fish SVG Cred:
https://thenounproject.com/search/?q=fish&i=589236
-->
<svg
xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink"
version="1.1"
x="0px"
y="0px"
viewBox="0 0 512 512"
enable-background="new 0 0 512 512"
xml:space="preserve"
>
<g>
<path
d="M495.9,425.3H16.1c-5.2,0-10.1,2.9-12.5,7.6c-2.4,4.7-2.1,10.3,0.9,14.6l39,56.4c2.6,3.8,7,6.1,11.6,6.1h401.7 c4.6,0,9-2.3,11.6-6.1l39-56.4c3-4.3,3.3-9.9,0.9-14.6C506,428.2,501.1,425.3,495.9,425.3z M449.4,481.8H62.6L43,453.6H469 L449.4,481.8z"
/>
<path
d="M158.3,122c7.8,0,14.1-6.3,14.1-14.1V43.4c0-7.8-6.3-14.1-14.1-14.1c-7.8,0-14.1,6.3-14.1,14.1v64.5 C144.2,115.7,150.5,122,158.3,122z"
/>
<path
d="M245.1,94.7c7.8,0,14.1-6.3,14.1-14.1V16.1c0-7.8-6.3-14.1-14.1-14.1C237.3,2,231,8.3,231,16.1v64.5 C231,88.4,237.3,94.7,245.1,94.7z"
/>
<path
d="M331.9,122c7.8,0,14.1-6.3,14.1-14.1V43.4c0-7.8-6.3-14.1-14.1-14.1s-14.1,6.3-14.1,14.1v64.5 C317.8,115.7,324.1,122,331.9,122z"
/>
<path
d="M9.6,385.2c5.3,2.8,11.8,1.9,16.2-2.2l50.6-47.7c56.7,46.5,126.6,71.9,198.3,71.9c0,0,0,0,0,0 c87.5,0,169.7-36.6,231.4-103.2c5-5.4,5-13.8,0-19.2c-61.8-66.5-144-103.2-231.4-103.2c-72,0-142.2,25.6-199,72.5l-50-47.1 c-4.4-4.1-10.9-5-16.2-2.2c-5.3,2.8-8.3,8.7-7.4,14.6l11.6,75L2.2,370.6C1.3,376.5,4.2,382.4,9.6,385.2z M380.9,230.8 c34.9,14.3,67.2,35.7,95.3,63.6c-10.1,10-20.8,19.2-31.9,27.5c-22.4-3.3-29.6-8.8-30.7-9.7c-4-5.7-11.8-7.7-18.1-4.4 c-6.9,3.6-9.5,12.2-5.9,19.1c1.9,3.5,7.3,10.3,22.4,16c-10.1,5.7-20.5,10.7-31.1,15.1C352.4,320.2,352.4,268.6,380.9,230.8z M36.3,255.6l29.4,27.7c5.3,5,13.6,5.1,19.1,0.3c53.2-47.6,120.7-73.7,190-73.7c26.9,0,53.2,3.9,78.5,11.3 c-29.3,44.6-29.3,102,0,146.6c-25.3,7.4-51.6,11.3-78.5,11.3c-69,0-136.3-26-189.4-73.2c-2.7-2.4-13.4-6.3-19.1,0.3l-30.1,28.3 l5.7-40C42.2,293,36.3,255.6,36.3,255.6z"
/>
<circle cx="398.8" cy="273.8" r="14.1" />
</g>
</svg>
<div class="wrapper">
<h2>LOCAL TAPAS</h2>
<p></p>
<ul class="plates">
<li>Loading Tapas...</li>
</ul>
<form class="add-items">
<input type="text" name="item" placeholder="Item Name" required />
<input type="submit" value="+ Add Item" />
</form>
</div>
<script>
const addItems = document.querySelector(".add-items");
const itemsList = document.querySelector(".plates");
const items = [];
</script>
</body>
</html>2. 결과
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>LocalStorage</title>
<style>
html {
box-sizing: border-box;
background: url("https://www.gyeongju.go.kr/upload/content/thumb/20200529/4368708A9CC649CDB1EC5DD0C389804C.jpg") center no-repeat;
background-size: cover;
min-height: 100vh;
display: flex;
justify-content: center;
align-items: center;
text-align: center;
font-family: Futura, "Trebuchet MS", Arial, sans-serif;
}
*,
*:before,
*:after {
box-sizing: inherit;
}
svg {
fill: white;
background: rgba(0, 0, 0, 0.1);
padding: 20px;
border-radius: 50%;
width: 200px;
margin-bottom: 50px;
}
.wrapper {
padding: 20px;
max-width: 350px;
background: rgba(255, 255, 255, 0.95);
box-shadow: 0 0 0 10px rgba(0, 0, 0, 0.1);
}
h2 {
text-align: center;
margin: 0;
font-weight: 200;
}
.plates {
margin: 0;
padding: 0;
text-align: left;
list-style: none;
}
.plates li {
border-bottom: 1px solid rgba(0, 0, 0, 0.2);
padding: 10px 0;
font-weight: 100;
display: flex;
}
.plates label {
flex: 1;
cursor: pointer;
}
.plates input {
display: none;
}
.plates input + label:before {
content: "⬜️";
margin-right: 10px;
}
.plates input:checked + label:before {
content: "🌮";
}
.add-items {
margin-top: 20px;
}
.add-items input {
padding: 10px;
outline: 0;
border: 1px solid rgba(0, 0, 0, 0.1);
}
</style>
</head>
<body>
<!--
Fish SVG Cred:
https://thenounproject.com/search/?q=fish&i=589236
-->
<svg
xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink"
version="1.1"
x="0px"
y="0px"
viewBox="0 0 512 512"
enable-background="new 0 0 512 512"
xml:space="preserve"
>
<g>
<path
d="M495.9,425.3H16.1c-5.2,0-10.1,2.9-12.5,7.6c-2.4,4.7-2.1,10.3,0.9,14.6l39,56.4c2.6,3.8,7,6.1,11.6,6.1h401.7 c4.6,0,9-2.3,11.6-6.1l39-56.4c3-4.3,3.3-9.9,0.9-14.6C506,428.2,501.1,425.3,495.9,425.3z M449.4,481.8H62.6L43,453.6H469 L449.4,481.8z"
/>
<path
d="M158.3,122c7.8,0,14.1-6.3,14.1-14.1V43.4c0-7.8-6.3-14.1-14.1-14.1c-7.8,0-14.1,6.3-14.1,14.1v64.5 C144.2,115.7,150.5,122,158.3,122z"
/>
<path
d="M245.1,94.7c7.8,0,14.1-6.3,14.1-14.1V16.1c0-7.8-6.3-14.1-14.1-14.1C237.3,2,231,8.3,231,16.1v64.5 C231,88.4,237.3,94.7,245.1,94.7z"
/>
<path
d="M331.9,122c7.8,0,14.1-6.3,14.1-14.1V43.4c0-7.8-6.3-14.1-14.1-14.1s-14.1,6.3-14.1,14.1v64.5 C317.8,115.7,324.1,122,331.9,122z"
/>
<path
d="M9.6,385.2c5.3,2.8,11.8,1.9,16.2-2.2l50.6-47.7c56.7,46.5,126.6,71.9,198.3,71.9c0,0,0,0,0,0 c87.5,0,169.7-36.6,231.4-103.2c5-5.4,5-13.8,0-19.2c-61.8-66.5-144-103.2-231.4-103.2c-72,0-142.2,25.6-199,72.5l-50-47.1 c-4.4-4.1-10.9-5-16.2-2.2c-5.3,2.8-8.3,8.7-7.4,14.6l11.6,75L2.2,370.6C1.3,376.5,4.2,382.4,9.6,385.2z M380.9,230.8 c34.9,14.3,67.2,35.7,95.3,63.6c-10.1,10-20.8,19.2-31.9,27.5c-22.4-3.3-29.6-8.8-30.7-9.7c-4-5.7-11.8-7.7-18.1-4.4 c-6.9,3.6-9.5,12.2-5.9,19.1c1.9,3.5,7.3,10.3,22.4,16c-10.1,5.7-20.5,10.7-31.1,15.1C352.4,320.2,352.4,268.6,380.9,230.8z M36.3,255.6l29.4,27.7c5.3,5,13.6,5.1,19.1,0.3c53.2-47.6,120.7-73.7,190-73.7c26.9,0,53.2,3.9,78.5,11.3 c-29.3,44.6-29.3,102,0,146.6c-25.3,7.4-51.6,11.3-78.5,11.3c-69,0-136.3-26-189.4-73.2c-2.7-2.4-13.4-6.3-19.1,0.3l-30.1,28.3 l5.7-40C42.2,293,36.3,255.6,36.3,255.6z"
/>
<circle cx="398.8" cy="273.8" r="14.1" />
</g>
</svg>
<div class="wrapper">
<h2>LOCAL TAPAS</h2>
<p></p>
<ul class="plates">
<li>Loading Tapas...</li>
</ul>
<form class="add-items">
<input type="text" name="item" placeholder="Item Name" required />
<input type="submit" value="+ Add Item" />
</form>
</div>
<script>
const addItems = document.querySelector(".add-items");
const itemsList = document.querySelector(".plates");
const items = [];
let idNum;
window.onload = function () {
idNum = localStorage.getItem("idNum");
if (idNum) {
itemsList.innerHTML = localStorage.getItem("data");
items.push(localStorage.getItem("data"));
} else {
idNum = 0;
}
};
addItems.onsubmit = function () {
let item = this.item.value;
items.push(`
<li>
<input type = "checkbox" id = "${idNum}">
<label for= "${idNum}">${item}</label>
</li>
`);
idNum++;
localStorage.setItem("idNum", idNum);
localStorage.setItem("data", items.join(""));
itemsList.innerHTML = localStorage.getItem("data");
this.item.value = "";
return false;
};
</script>
</body>
</html>3. 리뷰
먼저 idNum를 선언해주고 이를 id값으로 설정해주면서 인덱스의 역할을 하게끔 1씩 더해줬다.
그리고 만든 li태그들을 join으로 문자열형식으로 data라는 이름으로 localStorage에 담아줬다.
그리고 그값을 그대로 innerHTML로 받아온다.
윈도우가 로드할때 idNum를 통해 로컬스토리지가 비어있는지 확인한후
비어있다면 idNum에 0을 대입하고
데이터가 들어있다면 그 데이터를 불러와서 innerHTML로 받아온다.
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