javascript - 有什么方法可以使用 jQuery 过滤多个条件吗？

标签 javascript jquery html

所以我尝试通过这种方式通过多个条件过滤框，比如当我选择“ON-TRACK”然后选择“International”时，它应该只显示带有“International”标题的“ON-TRACK”框，如果我选择“ON-TRACK”和“OFF-TRACK”以及“Technology”，它应该什么都不显示等等...

我尝试使用 if 语句并尝试使用循环，但找不到方法。有小费吗？还有谢谢

$(document).ready(function() {
   
    let toShow = [];
    let noEl = [];
    $('.top-right a').click(function(e) {
        $(e.target).toggleClass('tag-active');
        let getId = e.target.id;
        let tagName = e.target.innerHTML;
        if (toShow.includes(getId)) {
            for (var i = 0; i < toShow.length; i ++) {
                if (toShow[i] == getId) { 
                    toShow.splice(i, 1);
                    break;
                }
            }
        }
        else {
            toShow.push(getId);
        }
        if  (noEl.includes(getId))  {
            for (let j = 0; j < noEl.length; j ++) {
                if (noEl[j] == getId) { 
                    $(`.list-body .${getId}`).fadeOut('fast');
                    noEl.splice(j, 1);
                    break;
                }
            }
        }
        if (toShow.length === 0) {
            $('#main .list-el').fadeIn('fast');
            $(`.list-body .tag-no-result`).fadeOut('fast');
        }
        else {
            $('#main .list-el').fadeOut('fast');
        }
        $.each(toShow, function(i, b) {
            $('#main .list-el'+'.'+b).fadeIn('fast');
        }); 
    });
});
.tag {
    border: 1px solid blue;
    display: inline-block;
    padding: 10px;
}

.myull {
    display: inline-block;
    border: 1px solid blue;
    padding: 5px
}
.btn {
    padding: 0px;
    font-size: 14px;
}
a {
    color: black;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<body class="m-4">
            <div class="list"> 
            <div class="top">
            <div class="top-right">
                <a id="tag-1" class="myull tag tag-1" href='#' class='tag'>ON-TRACK</a>
                <a id="tag-2" class="myull tag tag-2" href='#' class='tag'>OFF-TRACK</a>
                <a id="tag-3" class="myull tag tag-3" href='#' class='tag'>CRITICAL</a>
                <a id="tag-4" class="myull tag tag-4" href='#' class='tag'>NOT-STARTED</a>
                <a id="tag-5" class="myull tag tag-5" href='#' class='tag'>ONHOLD</a>
                <a id="tag-6" class="myull tag tag-6" href='#' class='tag'>CLOSED</a>
            </div>
            </div>
          <hr>
          <p class="pl-2">PORTFOLIO:</p>
            <div class="top">
            
            <div class="top-right myul">
                <a id="tag-7"  class="myull tag-7"  href='#'>Support</a>
                <a id="tag-8"  class="myull tag-8"  href='#'>Collaboration</a>
                <a id="tag-9"  class="myull tag-9"  href='#'>Quality</a>
                <a id="tag-10" class="myull tag-10" href='#'>DO</a>
                <a id="tag-11" class="myull tag-11" href='#'>Social</a>
                <a id="tag-12" class="myull tag-12" href='#'>University</a>
                <a id="tag-13" class="myull tag-13" href='#'>Technology</a>
            </div>
            </div>
          <hr>
          <p class="pl-2">OWNER:</p>
            <div class="top">
            <div class="top-right myul1">
                <a id="tag-14" class="myull tag-14"  href='#'>Jake</a>
                <a id="tag-15" class="myull tag-15"  href='#'>Adam</a>
                <a id="tag-16" class="myull tag-16"  href='#'>Mark </a>
                <a id="tag-17" class="myull tag-17" href='#'>Sam </a>
                <a id="tag-18" class="myull tag-18" href='#'>Sarah </a>
            </div>
            </div>
          </div>
<div class="container" style="background-color: aqua">
    <div class="row">
        <div id="main" class="col-md-12 parentClass">
                <div class="tag list-el tag-14 tag-1 tag-7  m-1">
                    <div>
                        <h4>ON-TRACK</h4>
                    </div>
                    <div>
                        <h5>Support</h5>
                    </div>
                    <div>
                        <h6>Jake</h6>
                    </div>        
                </div>
                <div class="tag list-el tag-14 tag-1 tag-8  m-1">
                    <div>
                        <h4>ON-TRACK</h4>
                    </div>
                    <div>
                        <h5>Collaboration</h5>
                    </div>
                    <div>
                        <h6>Jake</h6>
                    </div>      
                </div> 
                <div class="tag list-el tag-14 tag-2 tag-9  m-1">
                    <div>
                        <h4>OFF-TRACK</h4>
                    </div>
                    <div>
                        <h5>Quality</h5>
                    </div>
                    <div>
                        <h6>Jake</h6>
                    </div>      
                </div>
                <div class="tag list-el tag-15 tag-2 tag-10 m-1">
                    <div>
                        <h4>OFF-TRACK</h4>
                    </div>
                    <div>
                        <h5>DO</h5>
                    </div>
                    <div>
                        <h6>Adam</h6>
                    </div>      
                </div> 
                <div class="tag list-el tag-16 tag-3 tag-11 m-1">
                    <div>
                        <h4>CRITICAL</h4>
                    </div>
                    <div>
                        <h5>Social</h5>
                    </div>
                    <div>
                        <h6>Mark</h6>
                    </div>      
                </div> 
                <div class="tag list-el tag-17 tag-4 tag-12 m-1">
                    <div>
                        <h4>NOT-STARTED</h4>
                    </div>
                    <div>
                        <h5>University</h5>
                    </div>
                    <div>
                        <h6>Sam</h6>
                    </div>      
                </div>
                <div class="tag list-el tag-18 tag-4 tag-13 m-1">
                    <div>
                        <h4>ONHOLD</h4>
                    </div>
                    <div>
                        <h5>Technology</h5>
                    </div>
                    <div>
                        <h6>Sarah</h6>
                    </div>      
                </div>
        </div>
     </div>
</div>

最佳答案

看，如果您在特定切换处于事件状态时添加类名，然后通过比方说“事件”类获取当前选择的过滤器，最后使用处于事件状态的切换。

我已经完全重写了 JavaScript 事件处理程序。查看下面代码中的注释以了解每一行在做什么:

$(function() {

  // Filter in the tag list clicked
  $('.list').on('click', '.tag', function() {

    // Toggle active class on clicked element
    $(this).toggleClass('active');

    // Get all active filters' tag class number (tag-xx)
    let activeGp1 = $('.top:eq(0) .tag.active').map((i, el) => el.className.match(/tag-\d+/)[0]).get();
    
    let activeGp2 = $('.top:eq(1) .tag.active').map((i, el) => el.className.match(/tag-\d+/)[0]).get();
    
    let activeGp3 = $('.top:eq(2) .tag.active').map((i, el) => el.className.match(/tag-\d+/)[0]).get();
    
    // Filter the items below, must match at least one single active filter in each filter group
    $('#main .list-el').hide().filter((i, el) => 
      (activeGp1.length == 0 || activeGp1.some(c => el.classList.contains(c))) && 
      (activeGp2.length == 0 || activeGp2.some(c => el.classList.contains(c))) && 
      (activeGp3.length == 0 || activeGp3.some(c => el.classList.contains(c)))
    ).show();

    // Return false since it's not a hyperlink
    return false;
  });

});
.tag {
  border: 1px solid blue;
  display: inline-block;
  padding: 10px;
}

.tag.active {
  background-color: #ffe;
  box-shadow: inset 0 0 3px rgba(0, 0, 0, 0.2);
}

.myull {
  display: inline-block;
  border: 1px solid blue;
  padding: 5px
}

.btn {
  padding: 0px;
  font-size: 14px;
}

a {
  color: black;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<body class="m-4">
  <div class="list">
    <div class="top">
      <div class="top-right">
        <a class="myull tag tag-1">ON-TRACK</a>
        <a class="myull tag tag-2">OFF-TRACK</a>
        <a class="myull tag tag-3">CRITICAL</a>
        <a class="myull tag tag-4">NOT-STARTED</a>
        <a class="myull tag tag-5">ONHOLD</a>
        <a class="myull tag tag-6">CLOSED</a>
      </div>
    </div>
    <hr>
    <p class="pl-2">PORTFOLIO:</p>
    <div class="top">

      <div class="top-right myul">
        <a class="myull tag tag-7">Support</a>
        <a class="myull tag tag-8">Collaboration</a>
        <a class="myull tag tag-9">Quality</a>
        <a class="myull tag tag-10">DO</a>
        <a class="myull tag tag-11">Social</a>
        <a class="myull tag tag-12">University</a>
        <a class="myull tag tag-13">Technology</a>
      </div>
    </div>
    <hr>
    <p class="pl-2">OWNER:</p>
    <div class="top">
      <div class="top-right myul1">
        <a class="myull tag tag-14">Jake</a>
        <a class="myull tag tag-15">Adam</a>
        <a class="myull tag tag-16">Mark </a>
        <a class="myull tag tag-17">Sam </a>
        <a class="myull tag tag-18">Sarah </a>
      </div>
    </div>
  </div>
  <div class="container" style="background-color: aqua">
    <div class="row">
      <div id="main" class="col-md-12 parentClass">
        <div class="tag list-el tag-14 tag-1 tag-7  m-1">
          <div>
            <h4>ON-TRACK</h4>
          </div>
          <div>
            <h5>Support</h5>
          </div>
          <div>
            <h6>Jake</h6>
          </div>
        </div>
        <div class="tag list-el tag-14 tag-1 tag-8  m-1">
          <div>
            <h4>ON-TRACK</h4>
          </div>
          <div>
            <h5>Collaboration</h5>
          </div>
          <div>
            <h6>Jake</h6>
          </div>
        </div>
        <div class="tag list-el tag-14 tag-2 tag-9  m-1">
          <div>
            <h4>OFF-TRACK</h4>
          </div>
          <div>
            <h5>Quality</h5>
          </div>
          <div>
            <h6>Jake</h6>
          </div>
        </div>
        <div class="tag list-el tag-15 tag-2 tag-10 m-1">
          <div>
            <h4>OFF-TRACK</h4>
          </div>
          <div>
            <h5>DO</h5>
          </div>
          <div>
            <h6>Adam</h6>
          </div>
        </div>
        <div class="tag list-el tag-16 tag-3 tag-11 m-1">
          <div>
            <h4>CRITICAL</h4>
          </div>
          <div>
            <h5>Social</h5>
          </div>
          <div>
            <h6>Mark</h6>
          </div>
        </div>
        <div class="tag list-el tag-17 tag-4 tag-12 m-1">
          <div>
            <h4>NOT-STARTED</h4>
          </div>
          <div>
            <h5>University</h5>
          </div>
          <div>
            <h6>Sam</h6>
          </div>
        </div>
        <div class="tag list-el tag-18 tag-4 tag-13 m-1">
          <div>
            <h4>ONHOLD</h4>
          </div>
          <div>
            <h5>Technology</h5>
          </div>
          <div>
            <h6>Sarah</h6>
          </div>
        </div>
      </div>
    </div>
  </div>

关于javascript - 有什么方法可以使用 jQuery 过滤多个条件吗？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/55322074/

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