Bootstrap 4.0固定頂部不可摺疊導航欄不包裝菜單標籤

我正在嘗試重新構建使用引導程序的網站，但是我要麼做錯了什麼，要麼可能碰到了錯誤。Bootstrap 4.0固定頂部不可摺疊導航欄不包裝菜單標籤

總之，我使用bootstrap示例（Navbar-Toggler）中的示例摺疊導航欄。我正在使用JavaScript來填充菜單項。問題是，在添加了一定數量的選項卡之後，它將繼續將它們添加到內聯中，而不是包裝選項卡。我添加了一個應該顯示相同行爲的jsfiddle。它構建了40個應該製作2行或3行的選項卡，而是將它們全部內聯。

有什麼想法？

<!DOCTYPE html> 
<html lang="en"> 
<head> 
    <title>Bootstrap Example</title> 
    <meta charset="utf-8"> 
    <meta name="viewport" content="width=device-width, initial-scale=1"> 
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css"> 
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">  
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js" crossorigin="anonymous"></script>    
    <script src="https://code.jquery.com/jquery-1.10.2.js"></script>     
</head> 

<body onLoad="addTabs()"> 
<nav class="navbar navbar-toggleable-md navbar-light bg-faded"> 
    <button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation"> 
    <span class="navbar-toggler-icon"></span> 
    </button> 
    <a class="navbar-brand" href="#">Navbar</a> 
    <div class="collapse navbar-collapse" id="navbarNav"> 
    <ul class="navbar-nav" id="myNavbarEntries"> 
     <li class="nav-item active"> 
     <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a> 
     </li>  
    </ul> 
    </div> 
</nav> 

<script type = "text/javascript"> 
    function addTabs(){ 
     var v = document.getElementById("myNavbarEntries");  
    for(var x=0; x<20;x++){ 
     var a = document.createElement("li"); 
     var q = (x>0)?"nav-item":"nav-item active"; 
     a.className = q; 
     a.innerHTML = '<a class="nav-link disabled" href="#">New Tab</a>' 
     v.appendChild(a);   
    } 
    }  
</script> 

<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script> 
    <script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script> 
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script> 

</body> 
</html>

https://jsfiddle.net/ut8awbzs/5/

來源

2017-09-13 Jonathan Vargas

這一切需要在底部走的結束標記之前 <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/1.11.0/umd/popper.min.js" integrity="sha384-b/U6ypiBEHpOf/4+1nzFpr53nxSS+GLCkfwBdFNTxtclqqenISfwAzpKaMNFNmj4" crossorigin="anonymous"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/js/bootstrap.min.js" integrity="sha384-h0AbiXch4ZDo7tp9hKZ4TsHbi047NrKGLO3SEJAg45jXxnGIfYzk4Si90RDIqNm1" crossorigin="anonymous"></script>

來源

2017-09-13 21:00:31 mlegg

我做了修正添加到我的文件（我編輯的文件上面），但是，就像小提琴，行爲依然存在。 –

Bootstrap 4.0固定頂部不可摺疊導航欄不包裝菜單標籤

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