Explanation of tab label switching effect using JavaScript-JS Tutorial-php.cn

Explanation of tab label switching effect using JavaScript

巴扎黑

Release： 2017-08-17 14:13:47

Original

1719 people have browsed it

This is a tab switching effect based on js. It is a tab switching effect source code produced by native javascript without jQuery. Click on the title above to realize the switching function of the corresponding page, which is of great practical value. Operation rendering:

Tips: If the browser cannot run normally, you can try switching the browsing mode. The tab label switching effect code implemented in js to share with everyone is as follows

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>js实现tab标签切换效果</title>
<style>
*{ margin:0; padding:0; list-style:none;}
body{ font-size:12px;}

#menu{width:360px; overflow:hidden; margin:100px auto;border:1px solid #BF9660;}
#menu #nav {display:block;width:100%;padding:0;margin:0;list-style:none;}
#menu #nav li {float:left;width:120px;}
#menu #nav li a {display:block;line-height:27px;text-decoration:none;padding:0 0 0 5px; text-align:center; color:#333;}
#menu_con{ width:358px; height:135px; border-top:none}
.tag{ padding:10px; overflow:hidden;}
.selected{background:#C5A069; color:#fff;}
</style>
</head>
<body>

<!--代码部分begin-->
<p id="menu">
<!--tag标题-->
  <ul id="nav">
    <li><a href="#" class="selected">jQuery特效</a></li>
    <li><a href="#" class="">tab切换</a></li>
    <li><a href="#" class="">菜单导航</a></li>
  </ul>
<!--二级菜单-->
  <p id="menu_con">
    <p class="tag" style="display:block">
      这里是jQuery特效内容列表
     </p> 
    <p class="tag" style="display:none">
      这里是tab切换效果  
     </p> 
    <p class="tag" style="display:none">
      这里是菜单导航效果
    </p> 
</p>
</p>
<script>
var tabs=function(){
  function tag(name,elem){
    return (elem||document).getElementsByTagName(name);
  }
  //获得相应ID的元素
  function id(name){
    return document.getElementById(name);
  }
  function first(elem){
    elem=elem.firstChild;
    return elem&&elem.nodeType==1? elem:next(elem);
  }
  function next(elem){
    do{
      elem=elem.nextSibling; 
    }while(
      elem&&elem.nodeType!=1 
    )
    return elem;
  }
  return {
    set:function(elemId,tabId){
      var elem=tag("li",id(elemId));
      var tabs=tag("p",id(tabId));
      var listNum=elem.length;
      var tabNum=tabs.length;
      for(var i=0;i<listNum;i++){
          elem[i].onclick=(function(i){
            return function(){
              for(var j=0;j<tabNum;j++){
                if(i==j){
                  tabs[j].style.display="block";
                  //alert(elem[j].firstChild);
                  elem[j].firstChild.className="selected";
                }
                else{
                  tabs[j].style.display="none";
                  elem[j].firstChild.className="";
                }
              }
            }
          })(i)
      }
    }
  }
}();
tabs.set("nav","menu_con");//执行
</script>
<!--代码部分end-->


</body>
</html>

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