twitter-bootstrap 使用 jQuery 在 Bootstrap 4 中过滤卡片

Filter cards in Bootstrap 4 with jQuery

提问by Xgongiveittoya

I am attempting to create a page that is populated by many cards, using bootstrap 4's new card component.

我正在尝试使用引导程序 4 的新卡片组件创建一个由许多卡片填充的页面。

I want to create a search bar, that when searched, filters out cards whose titles don't match the search query.

我想创建一个搜索栏，在搜索时过滤掉标题与搜索查询不匹配的卡片。

Here is a plunker of what I have in mind. Plunker

这是我想到的一个plunker。普朗克

I would like the cards to get something like a display: none, or opacity:0if they don't match.

我希望卡片得到类似 的东西display: none，或者opacity:0如果它们不匹配。

I currently am attempting to write a function that onChangeof the search bar does this. I'll post if I can get it figured out.

我目前正在尝试编写一个onChange搜索栏执行此操作的函数。如果我能弄清楚，我会发布。

I've tried to use the built in snippet feature as well.

我也尝试使用内置的代码段功能。

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
<script src="https://cdn.rawgit.com/twbs/bootstrap/v4-dev/dist/js/bootstrap.js"></script>
<link href="https://cdn.rawgit.com/twbs/bootstrap/v4-dev/dist/css/bootstrap.css" rel="stylesheet" />

<div class="container">
  <div class="row">
    <div class="col-sm-4">
      <input type="search" placeholder="Search......" name="search" class="searchbox-input" onkeyup="buttonUp();" required>
    </div>
    <div class="col-sm-4">
    </div>
    <div class="col-sm-4">
    </div>
  </div>
  <div class="card-columns">
    <div class="card">
      <div class="card-block">
        <h4 class="card-title">Card title that wraps to a new line</h4>
        <p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
      </div>
    </div>
    <div class="card card-block">
      <blockquote class="card-blockquote">
        <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
        <footer>
          <small class="text-muted">
          Someone famous in <cite title="Source Title">Source Title</cite>
        </small>
        </footer>
      </blockquote>
    </div>
    <div class="card">
      <div class="card-block">
        <h4 class="card-title">Card title</h4>
        <p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
        <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small>
        </p>
      </div>
    </div>
    <div class="card card-block card-inverse card-primary text-xs-center">
      <blockquote class="card-blockquote">
        <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat.</p>
        <footer>
          <small>
          Someone famous in <cite title="Source Title">Source Title</cite>
        </small>
        </footer>
      </blockquote>
    </div>
    <div class="card card-block text-xs-center">
      <h4 class="card-title">Card title</h4>
      <p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
      <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small>
      </p>
    </div>
    <div class="card">
    </div>
    <div class="card card-block text-xs-right">
      <blockquote class="card-blockquote">
        <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.</p>
        <footer>
          <small class="text-muted">
          Someone famous in <cite title="Source Title">Source Title</cite>
        </small>
        </footer>
      </blockquote>
    </div>
    <div class="card card-block">
      <h4 class="card-title">Card title</h4>
      <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This card has even longer content than the first to show that equal height action.</p>
      <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small>
      </p>
    </div>
  </div>
</div>

回答by APAD1

Here's a quick example of how you could do it using jQuery's contains selector:

这是一个快速示例，说明如何使用 jQuery 的contains 选择器来完成此操作：

$('.searchbox-input').change( function () {
    $('.card').show();
    var filter = $(this).val(); // get the value of the input, which we filter on
    $('.container').find(".card-title:not(:contains(" + filter + "))").parent().css('display','none');
});

Currently this is set up to happen on change of the search input, you would probably want set up a submit button and have it fire on submit instead.

目前，这设置为在更改搜索输入时发生，您可能希望设置一个提交按钮并在提交时触发它。

Bootply Example

Bootply 示例

回答by Ricki Capelli

$(document).ready(function() {
    $('#searchForm').keyup(function(){
        search_text($(this).val());
    });

    function search_text(value){
        $('#search_section .card').each(function(){
            var found = 'false';
            $(this).each(function(){
                if($(this).text().toLowerCase().indexOf(value.toLowerCase()) >= 0)
                {
                    found = 'true';
                }
            });
            if(found == 'true'){
                $(this).show()
            }
            else {
                $(this).hide();
            }
        })
    }
});

回答by Daniel Wear

Here is the simple solution.

这是简单的解决方案。

$(document).ready(function(){
  $('.searchbox-input').on("keyup", function() {
    var value = $(this).val().toLowerCase();
    $(".card").filter(function() {
      $(this).toggle($(this).text().toLowerCase().indexOf(value) > -1)
    });
  });
});