SoFunction
Updated on 2025-02-28

Implement drag slider verification function based on JS components (code sharing)

The drag slider verification function can be seen in Alipay and major platforms of WeChat. So how do you implement this function based on JS components? Today, the editor will share with you the implementation code of the js drag slider verification function. The specific code is as follows:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate">
<meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="Expires" content="0">
<meta http-equiv="X-UA-Compatible" content="IE-Edge,chrome=1">
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,minimum-scale=1,user-scalable=no">
<meta content="yes" name="apple-mobile-web-app-capable">
<meta content="black" name="apple-mobile-web-app-status-bar-style"> 
<meta content="telephone=no" name="format-detection"> 
<meta content="email=no" name="format-detection"> 
<title>Drag slider verification</title>
<meta name="description" content="">
<meta name="keywords" content="">
<link rel="stylesheet" type="text/css" href="">
<style>
*{ margin:0; padding:0; }
body{ font:12px/1.125 Microsoft YaHei; background:#fff; }
ul, li{ list-style:none; }
a{ text-decoration:none; }
.ani{transition:all .3s;}
.wrap{ width:300px; height:350px; text-align:center; margin:150px auto;}
.inner{ padding:15px; }
.clearfix{ overflow:hidden; _zoom:1; }
.none{ display:none; }
#slider{position:relative;background-color:#e8e8e8;width:300px;height:34px;line-height:34px;text-align:center;}
#slider .handler{position:absolute;top:0px;left:0px;width:40px;height:32px;border:1px solid #ccc;cursor:move;}
.handler_bg{background:#fff url("data:image/png;base64,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") no-repeat center;}
.handler_ok_bg{background:#fff url("data:image/png;base64,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") no-repeat center;}
#slider .drag_bg{background-color:#7ac23c;height:34px;width:0px;}
#slider .drag_text{position:absolute;top:0px;width:300px;-moz-user-select:none;-webkit-user-select:none;user-select:none;-o-user-select:none;-ms-user-select:none;}
.unselect{-moz-user-select:none;-webkit-user-select:none;-ms-user-select:none;}
.slide_ok{color:#fff;}
</style>
</head>
<body>
<div class="wrap">
<div >
<div class="drag_bg"></div>
<div class="drag_text" onselectstart="return false;" unselectable="on">Drag slider verification</div>
<div class="handler handler_bg"></div>
</div>
</div>

<script>
(function(window,document,undefined){
var dog = {//Declare a namespace, or an object$:function(id){
return (id);
},
on:function(el,type,handler){
(type,handler,false);
},
off:function(el,type,handler){
(type,handler,false);
}
}; 
//Encapsulate a slider classfunction Slider(){
var args = arguments[0];
for(var i in args){
this[i] = args[i]; //A quick initialization configuration}
//Directly perform function initialization, which means that the initialization will be performed by generating an instance object.();
}
 = {
constructor:Slider,
init:function(){
();
();
},
getDom:function(){
 = dog.$('#'+);
 = dog.$('.handler');
 = dog.$('.drag_bg');
},
dragBar:function(handler){
var that = this,
startX = 0,
lastX = 0,
doc = document,
width = ,
max = width - ,
drag = {
down:function(e){
var e = e||;
('unselect');
startX =  - ;
('startX: '+startX+' px');
(doc,'mousemove',);
(doc,'mouseup',);
return false;
},
move:function(e){
var e = e||;
lastX =  - startX;
lastX = (0,(max,lastX)); //This step means that the distance is greater than 0 and less than max, clever writing method('lastX: '+lastX+' px');
if(lastX>=max){
('handler_ok_bg');
('slide_ok');
(handler,'mousedown',);
();
}
 = lastX + 'px';
 = lastX + 'px';
},
up:function(e){
var e = e||;
('unselect');
if(lastX < width){ 
('ani');
('ani');
 = 0;
 = 0;
setTimeout(function(){
('ani');
('ani');
},300);
}
(doc,'mousemove',);
(doc,'mouseup',);
}
};
(handler,'mousedown',);
}
};
 =  = Slider;
})(window,document);
var defaults = {
id:'slider'
};
new S(defaults);
</script>
</body>
</html>

The above is the drag slider verification function (code sharing) introduced by the editor to you based on JS components. I hope it will be helpful to everyone. If you have any questions, please leave me a message and the editor will reply to everyone in time. Thank you very much for your support for my website!