부트 스트랩 -4 * 드롭 다운이있는 버튼 선택된 값이 표시되지 않음

Question

사용 된 경우 bootstrap-4드롭 다운이있는 버튼이 드롭 다운에는 선택된 값이 표시되지 않습니다. 내가 선택한 값이 제대로, 내 코드에 뭔가 문제가있는 경우이 모든 가치의 한 시간을 얻기 통화 이름으로 설정하는 방법을 알고 싶어요, 당신은 그 문제를 이해할 수 snippet

$(".dropdown-menu ").click(function(){ 
 

 
    $(this).parents(".input-group-btn").find('.btn').text($(this).text()); 
 
    
 

 
});

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous"> 
 
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script> 
 
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js" integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh" crossorigin="anonymous"></script> 
 
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ" crossorigin="anonymous"></script> 
 
<div class="row"> 
 
    <div class="col-lg-6"> 
 
    <div class="input-group"> 
 
     <div class="input-group-btn"> 
 
     <button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> 
 
     Currency 
 
     </button> 
 
     <div class="dropdown-menu"> 
 
      <a class="dropdown-item" href="#">USD</a> 
 
      <a class="dropdown-item" href="#">AUS</a> 
 
     
 
     </div> 
 
     </div> 
 
     <input type="text" class="form-control" aria-label="Text input with dropdown button"> 
 
    </div> 
 
    </div> 
 
    
 
</div>

에서 찾아보세요

Answer 1

내가 선택 상자 같은 내 문제 솔루션 01
버튼 작업을 해결, 나는 변경 내 script

지금 61,303,210

의 작업 나

\t $('.dropdown-menu a').on('click', function(){  
 
    $('.dropdown-toggle').html($(this).html());  
 
})

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous"> 
 
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script> 
 
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js" integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh" crossorigin="anonymous"></script> 
 
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ" crossorigin="anonymous"></script> 
 
<div class="row"> 
 
    <div class="col-lg-6"> 
 
    <div class="input-group"> 
 
     <div class="input-group-btn"> 
 
     <button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> 
 
     Currency 
 
     </button> 
 
     <div class="dropdown-menu"> 
 
      <a class="dropdown-item" href="#">USD</a> 
 
      <a class="dropdown-item" href="#">AUS</a> 
 
     
 
     </div> 
 
     </div> 
 
     <input type="text" class="form-control" aria-label="Text input with dropdown button"> 
 
    </div> 
 
    </div> 
 
    
 
</div>

솔루션-02 스크립트

 $(".dropdown-menu a ").click(function(){ 

    $(this).parents(".input-group-btn").find('.btn').text($(this).text()); 


}); 

$(".dropdown-menu a ").click(function(){ 
 

 
    $(this).parents(".input-group-btn").find('.btn').text($(this).text()); 
 
    
 

 
});

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous"> 
 
    <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script> 
 
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js" integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh" crossorigin="anonymous"></script> 
 
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ" crossorigin="anonymous"></script> 
 
    <div class="row"> 
 
     <div class="col-lg-6"> 
 
     <div class="input-group"> 
 
      <div class="input-group-btn"> 
 
      <button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> 
 
      Currency 
 
      </button> 
 
      <div class="dropdown-menu"> 
 
       <a class="dropdown-item" href="#">USD</a> 
 
       <a class="dropdown-item" href="#">AUS</a> 
 
      
 
      </div> 
 
      </div> 
 
      <input type="text" class="form-control" aria-label="Text input with dropdown button"> 
 
     </div> 
 
     </div> 
 
     
 
    </div>