我制作了一首歌曲和一个歌词搜索页面。第一次搜索运行良好，但当我点击搜索按钮时，上一次的结果仍然存在，搜索结果也显示在页面上。
现在我想在搜索另一首歌或歌词时将结果消失。而且我想让搜索结果保持相同的风格，但我没有得到我想要的结果。
const text = document.getElementById('text');
const search = document.getElementById('search');
const result = document.getElementById('result');
// api url
const api= 'https://api.lyrics.ovh';
// song lyrics
function getLyrics (artist, title) {
let url = `${api}/v1/${artist}/${title}`
fetch(url)
.then(res => res.json())
.then(singerLyrics => {
const lyrics = singerLyrics.lyrics;
const getLyric = document.getElementById('getLyric');
getLyric.innerHTML = `<h2 class="text-success mb-4">${artist} - ${title}</h2>
<pre class="lyric text-white">${lyrics}</pre>`;
});
result.innerHTML= '';
}
// search by song or artist
function searchSongs(term){
fetch(`${api}/suggest/${term}`)
.then(res => res.json())
.then (showData);
};
// search result
function showData (data) {
result.innerHTML = `<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9"> ${data.data.map(song => `<h3 class="lyrics-name">${song.title}</h3>
<p class="author lead">${song.type} by <span>${song.artist.name}</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button onclick="getLyrics('${song.artist.name}','${song.title}')" class="btn btn-success">Get Lyrics</button>
</div>
</div>`)};
`;
};
//event listeners
search.addEventListener('click', function searchResult (){
const inputText = text.value.trim();
if (!inputText){
alert('this is not a song or artist')
}else {
searchSongs(inputText);
}
});body{
background-color: #13141b;
color: #ffffff;
background-image: url(images/bg-image.png);
background-repeat: no-repeat;
background-size: 100%;
background-position: top;
}
.form-control{
background-color:rgba(255, 255, 255, 0.2);
padding: 22px;
border: none;
border-radius: 25px;
}
.btn{
border-radius: 1.5rem;
padding: 9px 20px;
}
.btn-privious{
background: rgba(255, 255, 255, 0.2);
color: #ffffff;
}
.navbar-toggler {
border: none;
}
.search-box{
position: relative;
}
.search-btn {
position: absolute;
top: 0;
right: 0;
height: 100%;
}
.single-result{
background: rgba(255, 255, 255, 0.2);
border-radius: 15px;
}<!doctype html>
<html lang="en">
<head>
<title>Hard Rock Solution - Song Lyric App</title>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Favicon -->
<link rel="shortcut icon" href="favicon.ico" type="image/x-icon">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<!-- Custom css -->
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container">
<nav class="navbar navbar-dark my-3">
<a class="navbar-brand" href="#">
<img src="images/logo.png" alt="Hard Rock Solution">
</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#collapsibleNavId" aria-controls="collapsibleNavId" aria-expanded="false" aria-label="Toggle navigation">
<img src="images/toggler-icon.svg" alt="">
</button>
<div class="collapse navbar-collapse" id="collapsibleNavId">
<ul class="navbar-nav ml-auto mt-2 mt-lg-0">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="dropdownId" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</a>
<div class="dropdown-menu" aria-labelledby="dropdownId">
<a class="dropdown-item" href="#">Action 1</a>
<a class="dropdown-item" href="#">Action 2</a>
</div>
</li>
</ul>
</div>
</nav>
<main class="content-area">
<div class="search-bar col-md-6 mx-auto">
<h1 class="text-center">Lyrics Search</h1>
<div class="search-box my-5">
<input id="text" type="text" class="form-control" placeholder="Enter your artist song name">
<button id="search" class="btn btn-success search-btn">Search</button>
</div>
</div>
<!-- === Simple results === -->
<div class="d-flex justify-content-center">
<div id="result" class="">
</div>
<!-- Single Lyrics -->
<div id="getLyric" id="artistTitle" class="single-lyrics text-center">
</div>
</div>
</main>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
<!-- Custom Script Here -->
<script src ="javascrpt.js"> </script>
</body>
</html>尝试使用autocomplete="关闭"；像
<input type="text" name="foo" autocomplete="off" />
每次点击搜索，歌词容器都应该被emtpied:
document.querySelector("#getLyric").childNodes.forEach(el => el.remove())
要解决此问题，请将其添加到您的脚本中：
document.querySelector("#search").addEventListener('click', function () {
document.querySelector("#getLyric").innerHTML = '';
})