[Udemy]20 Web Projects With Vanilla JavaScript -Project#11

유데미에서 Brad Traversy의 20 Web Projects With Vanilla JavaScript

를 하나씩 직접 코딩해보면서 정리하기 위한 글이다.

데모 페이지

vanillawebprojects.com/projects/infinite_scroll_blog/

코드 링크

index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <link rel="stylesheet" href="style.css">
    <title>My Blog</title>
</head>
<body>
    <h1>블로그</h1>

    <div class="filter-container">
        <input type="text" id="filter" class="filter" placeholder="Filter posts...">
    </div>

    <div id="posts-container">
    </div>
    <div class="loader">
        <div class="circle"></div>
        <div class="circle"></div>
        <div class="circle"></div>
    </div>
    <script src="script.js"></script>
</body>
</html>

style.css

@import url('https://fonts.googleapis.com/css?family=Roboto&display=swap');

* {
    box-sizing: border-box;
}

body {
    background-color: #296ca8;
    color: #fff;
    font-family: 'Roboto', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
    padding-bottom: 100px;
}

h1 {
    margin-bottom: 0;
    text-align: center;
}

.filter-container {
    margin-top: 20px;
    width: 80vw;
    max-width: 800px;
}

.filter {
    width: 100%;
    padding: 12px;
    font-size: 16px;
}

.post {
    position: relative;
    background-color: #4992d3;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    border-radius: 3px;
    padding: 20px;
    margin: 40px 0;
    display: flex;
    width: 80vw;
    max-width: 800px;
}

.post .post-title {
    margin: 0;
}

.post .post-body {
    margin: 15px 0 0;
    line-height: 1.3;
}

.post .post-info {
    margin-left: 20px;
}

.post .number {
    position: absolute;
    top: -15px;
    left: -15px;
    font-size: 15px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #fff;
    color: #296ca8;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 7px 10px;
}

.loader {
    opacity: 0;
    display: flex;
    position: fixed;
    bottom: 50px;
    transition: opacity 0.3s ease-in;
}

.loader.show {
    opacity: 1;
}

.circle {
    background-color: #fff;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin: 5px;
    animation: bounce 0.5s ease-in infinite;
}

.circle:nth-of-type(2) {
    animation-delay: 0.1s;
}

.circle:nth-of-type(3) {
    animation-delay: 0.2s;
}

@keyframes bounce {
    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

script.js

const postsContainer = document.getElementById('posts-container');
const loading = document.querySelector('.loader');
const filter = document.getElementById('filter');

let limit = 5;
let page = 1;

// Fetch posts from API
async function getPosts() {
    const res = await fetch(`https://jsonplaceholder.typicode.com/posts?_limit=${limit}&_page=${page}`);
    return await res.json();
}

// Show posts in DOM
async function showPosts() {
    const posts = await getPosts();

    posts.forEach(post => {
        const postEl = document.createElement('div');
        postEl.classList.add('post');
        postEl.innerHTML = `
        <div class="number">${post.id}</div>
         <div class="post-info">
             <h2 class="post-title">${post.title}</h2>
             <p class="post-body">${post.body}</p>
</div>
        `;
        postsContainer.appendChild(postEl);
    })
}

function showLoading() {
    loading.classList.add('show');

    setTimeout(() => {
        loading.classList.remove('show');

        setTimeout(() => {
            page++;
            showPosts();
        }, 300);
    }, 1000);
}

function filterPosts(e) {
    const term = e.target.value.toUpperCase();
    const posts = document.querySelectorAll('.post');

    posts.forEach(post => {
        const title = post.querySelector('.post-title').innerText.toUpperCase();
        const body = post.querySelector('.post-body').innerText.toUpperCase();

        if (title.indexOf(term) > -1 || body.indexOf(term) > -1) {
            post.style.display = 'flex';
        } else {
            post.style.display = 'none';
        }
    });
}




showPosts();
window.addEventListener('scroll', ()=> {
    const {scrollTop, scrollHeight, clientHeight} = document.documentElement;

    if (scrollTop + clientHeight >= scrollHeight - 5) {
        showLoading();
    }
})

filter.addEventListener('input', filterPosts);

강의를 통해 배운 점(생각, 내용 정리)

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[Udemy]20 Web Projects With Vanilla JavaScript -Project#11

index.html

style.css

script.js

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