根据 API 调用返回的数据构建滑块

Question

需要根据 API 调用返回的数据构建一个滑块（轮播）。我需要提取 3 个值。 image、title 和 description。

它必须是 picture、heading 和 description（在每张幻灯片上，从 JSON 中提取）。

jQuery

var myJSON = 'apiCall';
$.getJSON('myJSON, { get_param: 'value' }, function(data) {
    $.each(data, function(index, element) {
        $('body').append($('<img>', {  
        }));
    });
});

HTML

   <div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel">
             <ol class="carousel-indicators">
               <li data-target="#carouselExampleIndicators" data-slide-to="0" class="active"></li>
    <li data-target="#carouselExampleIndicators" data-slide-to="1"></li>
    <li data-target="#carouselExampleIndicators" data-slide-to="2"></li>
  </ol>
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img class="d-block w-80" src="..." alt="First slide">
        <div class="carousel-caption d-none d-md-block">
         <h5></h5>
         <p></p>
        </div>
    </div>
    <div class="carousel-item">
      <img class="d-block w-80" src="..." alt="Second slide">
        <div class="carousel-caption d-none d-md-block">
         <h5></h5>
         <p></p>
        </div>
  </div>
    </div>
    <div class="carousel-item">
      <img class="d-block w-80" src="..." alt="Third slide">
       <div class="carousel-caption d-none d-md-block">
         <h5></h5>
         <p></p>
       </div>
    </div>
  </div>
  <a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

Answer 1

let html = `
<div class="carousel-item">
      <img class="d-block w-80" src="${imgSrc}" alt="Second slide">
        <div class="carousel-caption d-none d-md-block">
         <h5>${title}</h5>
         <p>${parangraph}</p>
        </div>
  </div>
`
$(".carousel-inner")[0].append(html)

把上面的代码放在一个循环中，你应该已经准备好了。 imgSrc、标题和段落应该从您的 API 调用中动态生成。

Answer 2

$.get('apiCall')
      .then(function(response) {
          var $carousel = $('#carouselExampleIndicators');
          var $carouselInner = $carousel.find('.carousel-inner');

          response.data.forEach(function(item, i) {
            var template = '';

            if(i === 0) {
              template = '<div class="carousel-item active">';
            } else {
              template = '<div class="carousel-item">';
            }
            
            template += '<img class="d-block w-80" src="' + item.image + '" alt="Second slide">'; 
            template += '<div class="carousel-caption">';
            template += '<h5>' + item.title_a + '</h5>';
            template += '<p>' + item.category + '</p>';
            template += '</div>';
            template += '</div>';

            $carouselInner.append(template);
          })

          $carousel.carousel();
      })

<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
<div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel">
		<div class="carousel-inner">
		
		</div>
		<a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev">
			<span class="carousel-control-prev-icon" aria-hidden="true"></span>
			<span class="sr-only">Previous</span>
		</a>
		<a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next">
			<span class="carousel-control-next-icon" aria-hidden="true"></span>
			<span class="sr-only">Next</span>
		</a>
	</div>

嘿，这里是 jQuery 和 ES5 js 的例子。我建议你使用 https://handlebarsjs.com/ 来模板化 html。会更好看。