“无结果”不适用于过滤器搜索栏

Question

我正在尝试制作一个过滤搜索栏，它可以工作，但“无结果”页面却不行。我试过让“无结果”出现，但无论我做什么，它都没有。 (jquery/javascript) 非常感谢您的帮助！这是我的代码：

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>


<div align="right"class="live-search-bar">
 <input class="search-bar" id="searchbar" type="text" placeholder="Search for a game..">
</div>

<div id="button-container">

<div>
  <button class="games-button">Oranges</button>
</div>
<div>
  <button class="games-button">Bananas</button>
</div>
<div>
  <button class="games-button">Apples</button>
</div>

<script>
$(document).ready(function(){
  $("#searchbar").on("keyup", function() {
    var value = $(this).val().toLowerCase();
    $("#button-container button").filter(function() {
      $(this).toggle($(this).text().toLowerCase().indexOf(value) > -1)

      // No Results, Not working

       $('.noresults').remove();
       $("#button-container").each(function () {
                if ($(this).children(':visible').length == 0) 
                    $(this).append('<em>No Results</em>');
      });   
    });
  });
});
</script>

Answer 1

给你一个解决方案

jsFiddle

$(document).ready(function(){
  $('.noresults').hide();
  
  $("#searchbar").on("keyup", function() {
    var value = $(this).val().toLowerCase();
    $("#button-container button").filter(function() {
      $(this).toggle($(this).text().toLowerCase().indexOf(value) > -1)
      $('.noresults').hide();
      
      var noResult = true;
      $("#button-container").children('div').each(function () {
      	if ($(this).children(':visible').length != 0) {
        	noResult = false;
        }
      });   
      if (noResult) {
      	$('.noresults').show();
      }
    });
  });
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div align="right"class="live-search-bar">
 <input class="search-bar" id="searchbar" type="text" placeholder="Search for a game..">
</div>

<div id="button-container">
  <div>
    <button class="games-button">Oranges</button>
  </div>
  <div>
    <button class="games-button">Bananas</button>
  </div>
  <div>
  <button class="games-button">Apples</button>
  </div>
</div>

<div class="noresults">
  No Results
</div>

您需要使用button-container 循环遍历每个div

$("#button-container").children('div').each(function () {});

希望对你有帮助