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How to use native js to simply encapsulate the confirm pop-up box

云罗郡主Original: 2019-01-21 13:15:224896browse

Due to the needs of the project, I made a super simple pop-up box, which will pop up as soon as the page is opened. Since the project director said that it should be as small as possible (less introduction of encapsulated file packages), native js was used (I found that jQuery is basically used on the Internet). Without further ado, let’s get into the code

<!DOCTYPE html>
<head>
    <meta charset="utf-8">
    <title>登录确定提醒</title>
    <style>
    html,
    body {
        margin: 0;
        padding: 0;
        font-family: "微软雅黑";
    }
    .wrap-dialog {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        font-size: 16px;
        text-align: center;
        background-color: rgba(0, 0, 0, .7);
        z-index: 999;
    }
    .dialog {
          top: 0;
          left: 0;
        position: relative;
        /*margin: 10% auto;*/
        width: 300px;
        background-color: #FFFFFF;
        border-radius: 2px;
    }
    .dialog .dialog-header {
        height: 20px;
        padding: 10px;
        background-color: #F8F8F8;
        border-bottom: 1px solid #eee;
        text-align: left;
    }
   .dialog-title{
        display: inline-block;
        width: 50px;
        margin-left: 0;
    }
    .dialog .dialog-body {
        height: 30px;
        padding: 20px;
    }
    .dialog .dialog-footer {
        padding: 8px;
        background-color: #f5f5f5;
    }
    .dialog-btn {
        cursor: pointer;
        background: #ff5622;
        border: 1px solid #ff5622;
        border-radius: 2px;
        color: #fff;
            height: 28px;
            line-height: 28px;
            margin: 5px 5px 0;
            padding:0 25px;
    } 
    .dialog-hide {
        display: none;
    }
    .dialog-ml50 {
        margin-left: 50px;
        background: #fcfbfc;
        color: #000;
        border: 1px solid #dedede;
    }
    .closeBtn{
        display: inline-block;
        width: 20px;
        height: 20px;
        padding: 10px;
        line-height: 20px;
        text-align: center;
        /*background: red;*/
        color: #333;
        font-size: 12px;
        float: right;
        cursor:pointer;
        font-weight: bolder;
    }
     .closeBtn:hover{
        color: #A0A8B4;
     }
    </style>
</head>
<body>
    <div class="wrap-dialog dialog-hide" id="dialog-hide">          
        <div class="dialog" id="dialog">            
            <a class="closeBtn" id="closeBtn">X</a>
            <div class="dialog-header">
                <span class="dialog-title">提示</span>                
            </div>
            <div class="dialog-body">
                <span class="dialog-message" id="dialog-message">是否要退出登录？</span>
            </div>
            <div class="dialog-footer">
                <input type="button" class="dialog-btn" id="dialog-confirm" value="是" />
                <input type="button" class="dialog-btn dialog-ml50" id="dialog-cancel" value="否" />
            </div>
        </div>
    </div>
</body>
<script>
    window.onload=function(){
            var choose=function(id){
            return document.getElementById(id);
        }
       //自定義部分
    window.confirm = function(message, yesCallBack, noCallBack) {
        var message = message || "是否要退出登录?";
       choose("dialog-message").innerHTML = message;
        // 显示遮罩和对话框
       choose("dialog-hide").className = "wrap-dialog";
        // 确定按钮
       choose("dialog").onclick= function(e){
            if(e.target.className=="dialog-btn"){
                 choose("dialog-hide").className = "wrap-dialog dialog-hide";
                 yesCallBack();
            }else if (e.target.className=="dialog-btn dialog-ml50"){
                 choose("dialog-hide").className = "wrap-dialog dialog-hide";
                  noCallBack();
            }
        };
        // 取消按钮
       choose("closeBtn").onclick = function(){
            choose("dialog-hide").style.display = "none";
        }
    }
     function submitHand(){
         function submitBtn() {
           alert("确定");
        }
        function closeBtn() {
            alert("取消");
        }
        confirm("确认登录？", submitBtn, closeBtn);
    }
   //页面打开自动弹出  
   submitHand();
}
</script>
</html>

to achieve the effect ：

How to use native js to simply encapsulate the confirm pop-up box

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