如何解决如何访问具有相同类的特定按钮的值
我正在开发一个Web应用程序，用户可以在其中搜索所需的歌曲歌词。我正在使用一个API。现在我可以生成10首歌曲结果，但是问题是当用户单击“获取歌词”按钮时，我无法访问该特定按钮的歌曲标题的值。仅通过单击获取歌词按钮如何获得特定的歌曲标题和专辑名称？这是我的最终结果：
const apiUrl = "https://api.lyrics.ovh/suggest";
const search = document.getElementById("search-btn");
const result = document.getElementById("result");
const text = document.getElementById("text");
const getLyrics = document.getElementsByClassName("get-lyrics");
//search by songs or artist...
function searchSongs(term) {
fetch (`${apiUrl}/${term}`)
.then (response => response.json())
.then (data => {
const lyricsName = document.getElementsByClassName("lyrics-name");
for (let index = 0; index < lyricsName.length; index++) {
const element = lyricsName[index];
element.innerText = data.data[index].album.title;
}
const artist = document.getElementsByClassName("artist");
for (let index = 0; index < artist.length; index++) {
const element = artist[index];
element.innerText = data.data[index].artist.name;
}
document.getElementById("result").style.display = "block";
//console.log(data);
});
}
//event listener to search song or artist
search.addEventListener("click",e => {
//e.preventDefault();
const searchTerm = text.value;
if (!searchTerm) {
alert("please type a song a name");
} else {
searchSongs(searchTerm);
}
})
//event listener to get lyrics
for (let index = 0; index < getLyrics.length; index++) {
const element = getLyrics[index];
element.addEventListener("click",function(){
const title = `${index + 1}`;
})
}<!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"> <span id="artist"></span> <span id="title"></span>
<button id="search-btn" class="btn btn-success search-btn">Search</button>
</div>
</div>
<!-- search results -->
<div id="result" class="search-result col-md-8 mx-auto py-4">
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsOne" class="lyrics-name">Purple Noon</h3>
<p id="artistOne" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnOne" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsTwo" class="lyrics-name">Purple Noon</h3>
<p id="artistTwo" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnTwo" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsThree" class="lyrics-name">Purple Noon</h3>
<p id="artistThree" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnThree" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsFour" class="lyrics-name">Purple Noon</h3>
<p id="artistFour" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnFour" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsFive" class="lyrics-name">Purple Noon</h3>
<p id="artistFive" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnFive" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsSix" class="lyrics-name">Purple Noon</h3>
<p id="artistSix" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnSix" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsSeven" class="lyrics-name">Purple Noon</h3>
<p id="artistSeven" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnSeven" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsEight" class="lyrics-name">Purple Noon</h3>
<p id="artistEight" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnEight" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsNine" class="lyrics-name">Purple Noon</h3>
<p id="artistNine" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnNine" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsTen" class="lyrics-name">Purple Noon</h3>
<p id="artistTen" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnTen" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
</div>
<!-- === search results === -->
<!-- Single Lyrics -->
<div id="lyrics" class="single-lyrics text-center">
<button class="btn go-back">‹</button>
<h2 class="text-success mb-4">Pentatonix - Na Na Na</h2>
<pre class="lyric text-white">
Wont go whistling like the wind blows,Looking out my window,Just to see the shine
Maybe you might call it crazy,How Im acting lately,Skipping through the sky
I see so clearly,Why Im always feeling free.
So I sleep when my dreams,Looking like reality
(Gonna feel it! Na na na...) x4
Gonna feel it!
I know where the greener grass grows
Youll just have to follow
To the other side
Lets go tiptoe on a tight rope,Fallings only natural
Just spread your wings and fly
Youll see so clearly,Why Im always feeling free.
So I sleep when our dreams
Looking like reality
(Gonna feel it! Na na na...) x4
Bring it down like
Ohh way oh
Yeah yeah yeah yeah yeah yeah
Break it down like
Ohh way oh
Yeah,yeah,yeah...
All around like
Ohh way oh
Yeah,yeah...
Sing it loud like!
Ohh way oh
Ah oo oo ooo
Gonna feel it! (Na na na...)
Make it sound like! (Na na na...)
All around like! (Na na na...)
Sing it loud like! (Na na na...)
Gonna feel like! (Na na na...)
</pre>
</div>
</main>
<!-- Optional JavaScript -->
<script src="app.js"></script>
<!-- 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 -->
</body>
</html>解决方法
您可以将事件对象传递到事件侦听器中，以便获得单击了哪个元素。在事件监听器中，您可以检查元素的ID或要查找的属性。如果您更改按钮的ID，则会从按钮中获取歌曲信息。
for (let index = 0; index < getLyrics.length; index++) {
const element = getLyrics[index];
element.addEventListener("click",function(event){
console.log(event.target.getAttribute('id'))
const title = `${index + 1}`;
})
}
我只是将3个for循环合并为一个。
const apiUrl = "https://api.lyrics.ovh/suggest";
const search = document.getElementById("search-btn");
const result = document.getElementById("result");
const text = document.getElementById("text");
const getLyrics = document.getElementsByClassName("get-lyrics");
//search by songs or artist...
function searchSongs(term) {
fetch (`${apiUrl}/${term}`)
.then (response => response.json())
.then (data => {
const lyricsName = document.getElementsByClassName("lyrics-name");
const getLyrics = document.getElementsByClassName("get-lyrics ");
const artist = document.getElementsByClassName("artist");
for (let index = 0; index < lyricsName.length; index++) {
lyricsName[index].innerText = data.data[index].album.title;
artist[index].innerText = data.data[index].artist.name;
//event listener to get lyrics
getLyrics[index].addEventListener("click",function(){
console.log("Song:"+data.data[index].album.title +" By:"+data.data[index].artist.name);
//getLyricsAPI(title,artist);
});
}
document.getElementById("result").style.display = "block";
//console.log(data);
});
}
//event listener to search song or artist
search.addEventListener("click",e => {
//e.preventDefault();
const searchTerm = text.value;
if (!searchTerm) {
alert("please type a song a name");
} else {
searchSongs(searchTerm);
}
})<!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"> <span id="artist"></span> <span id="title"></span>
<button id="search-btn" class="btn btn-success search-btn">Search</button>
</div>
</div>
<!-- search results -->
<div id="result" class="search-result col-md-8 mx-auto py-4">
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsOne" class="lyrics-name">Purple Noon</h3>
<p id="artistOne" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnOne" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsTwo" class="lyrics-name">Purple Noon</h3>
<p id="artistTwo" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnTwo" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsThree" class="lyrics-name">Purple Noon</h3>
<p id="artistThree" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnThree" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsFour" class="lyrics-name">Purple Noon</h3>
<p id="artistFour" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnFour" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsFive" class="lyrics-name">Purple Noon</h3>
<p id="artistFive" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnFive" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsSix" class="lyrics-name">Purple Noon</h3>
<p id="artistSix" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnSix" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsSeven" class="lyrics-name">Purple Noon</h3>
<p id="artistSeven" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnSeven" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsEight" class="lyrics-name">Purple Noon</h3>
<p id="artistEight" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnEight" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsNine" class="lyrics-name">Purple Noon</h3>
<p id="artistNine" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnNine" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
<div class="single-result row align-items-center my-3 p-3">
<div class="col-md-9">
<h3 id="lyricsTen" class="lyrics-name">Purple Noon</h3>
<p id="artistTen" class="author lead">Album by <span class="artist">Washed Out</span></p>
</div>
<div class="col-md-3 text-md-right text-center">
<button id="btnTen" class="get-lyrics btn btn-success">Get Lyrics</button>
</div>
</div>
</div>
<!-- === search results === -->
<!-- Single Lyrics -->
<div id="lyrics" class="single-lyrics text-center">
<button class="btn go-back">‹</button>
<h2 class="text-success mb-4">Pentatonix - Na Na Na</h2>
<pre class="lyric text-white">
Wont go whistling like the wind blows,Looking out my window,Just to see the shine
Maybe you might call it crazy,How Im acting lately,Skipping through the sky
I see so clearly,Why Im always feeling free.
So I sleep when my dreams,Looking like reality
(Gonna feel it! Na na na...) x4
Gonna feel it!
I know where the greener grass grows
Youll just have to follow
To the other side
Lets go tiptoe on a tight rope,Fallings only natural
Just spread your wings and fly
Youll see so clearly,Why Im always feeling free.
So I sleep when our dreams
Looking like reality
(Gonna feel it! Na na na...) x4
Bring it down like
Ohh way oh
Yeah yeah yeah yeah yeah yeah
Break it down like
Ohh way oh
Yeah,yeah,yeah...
All around like
Ohh way oh
Yeah,yeah...
Sing it loud like!
Ohh way oh
Ah oo oo ooo
Gonna feel it! (Na na na...)
Make it sound like! (Na na na...)
All around like! (Na na na...)
Sing it loud like! (Na na na...)
Gonna feel like! (Na na na...)
</pre>
</div>
</main>
<!-- Optional JavaScript -->
<script src="app.js"></script>
<!-- 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 -->
</body>
</html>
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