我正在一個網站上作業，該網站用于使用垂直折疊手風琴顯示新聞。我正在使用外部 API 來獲取新聞。我一次只需要顯示新聞。當我點擊第二個新聞標題時，我需要隱藏/折疊第一個新聞描述。同樣，當我單擊任何新聞時，我希望其余新聞保持折疊/隱藏，但這不起作用。（見網頁截圖）
這里是 html 和 JS 代碼。
JS：
let display = document.getElementById("display");
const xhr = new XMLHttpRequest;
xhr.open("GET", "https://newsapi.org/v2/top-headlines?sources=bbc-news&apiKey=70893d07e43d413faf7813e13df0f8aa", true)
xhr.onload = function () {
let strHtml = "";
if (this.status === 200) {
let newsObj = JSON.parse(this.responseText);
let newsArticles = newsObj.articles;
console.log(newsArticles)
newsArticles.forEach(function (element, index) { //newsArticle --> an array which contains the news data including the title and description of the news
let str = `<div >
<h2 id="heading${index}">
<button type="button" data-bs-toggle="collapse" data-bs-target="#collapse${index}" aria-expanded="false" aria-controls="collapse${index}">
${element.title}
</button>
</h2>
<div id="collapse${index}" aria-labelledby="heading${index}" data-bs-parent="#accordionExample">
<div >
<strong> ${element.description}</strong>
<a href="${element.url}" target="_blank" <button type="button" >Learn more</button> </a>
</div>
</div>
</div>`
strHtml = str; //append news data into strHtml string
});
}
else {
console.log("some error")
}
display.innerHTML = strHtml; //to display the news on the page
}
xhr.send();<!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">
<title>Document</title>
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
<div class="container-fluid">
<a class="navbar-brand" href="#">BBC News</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse"
data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false"
aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#">Home</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="navbarDropdown" role="button"
data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</a>
<ul class="dropdown-menu" aria-labelledby="navbarDropdown">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li>
<hr class="dropdown-divider">
</li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</li>
<li class="nav-item">
<a class="nav-link disabled">Disabled</a>
</li>
</ul>
<form class="d-flex">
<input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success" type="submit">Search</button>
</form>
</div>
</div>
</nav>
<div class="container my-3">
<h3><span class="badge bg-primary">Top news</span>
</h3>
</div>
<hr>
<div class="container accordionExample" >
<div class="accordion" id="display">
</div>
</div>
</div>
<script src="./JS/index.js"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"
integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg OMhuP IlRH9sENBO0LRn5q 8nbTov4 1p"
crossorigin="anonymous"></script>
</body>
</html>uj5u.com熱心網友回復：
您需要一個<div>帶有父母 ID 的手風琴：
<div class="accordion" id="accordionExample">
在你的.collapse元素中你需要那個
data-bs-parent="#accordionExample"
你已經有了。所以我想這只是缺少的包裝器。
uj5u.com熱心網友回復：
嘗試用下面的變數替換“str”變數。它應該作業。
let str = `<div class="card">
<div class="accordion-header" id="heading${index}">
<h5 class="mb-0">
<button class="btn" data-toggle="collapse" data-target="#collapse${index}" aria-expanded="true" aria-controls="collapse${index}">
${element.title}
</button>
</h5>
</div>
<div id="collapse${index}" class="collapse collapse" aria-labelledby="heading${index}">
<div class="accordion-body">
<strong> ${element.description}</strong>
<a href="${element.url}" target="_blank" <button type="button" class="btn btn-primary">Learn more</button> </a>
</div>
</div>
</div>`
轉載請註明出處，本文鏈接：https://www.uj5u.com/gongcheng/338332.html
標籤：javascript html 推特引导