jquery框架和mvvm框架的元素插入对比

这里的mvvm框架选用的是avalon.

元素插入用的是img做例子。

点击看效果demo

核心代码：

　　

 //jq way
var picHref = $("<a></a>").attr("class","zxx_image_list");
var picSrc = $("<img</img>").attr("src",$img[count]).attr("class","zxx_image");
picHref.append(picSrc);
picHref.appendTo($("#jqCover"));
                
 //vm way
mvvmImg.imgArr.push($img[count]);

　　可以很清晰得看见。以上两种方式的效果是一样的，mvvm模式下的元素插入和删除会更加简洁。

demo源码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        .demo-container{
            width: 80%;
            margin: 0 auto;
            border-left: 1px solid #e4e4e4;
            border-right: 1px solid #e4e4e4;
        }
        .zxx_image_list{
            display:inline-block; 
            width:1.2em; 
            margin-top:20px; 
            text-align:center; 
            font-size:128px; 
            vertical-align:middle;
        }
        .zxx_image_list img.zxx_image{
            padding:3px; 
            width: 1.2em;
            height:0.72em;
            border:1px solid #828da1; 
            background:white; 
            vertical-align:middle; 
            position:relative;
        }
        .zxx_image_list:hover,.zxx_image_list:hover .zxx_image{border-color:#ff3300;}
        .img-container{
            padding-right: 252px;
            padding-left: 250px;
        }
        .finishedInfo{
            text-align: center;
            display: none;
        }
        .title{
            text-align: center;
        }
    </style>
</head>
<body> 
    <div class="demo-container">
        <button id="add">添加图片</button>
        <h4 class="finishedInfo">图片加载完成</h4>
        <div class="title">
            jquery方式
        </div>
        <div class="img-container" id="jqCover">
            
        </div>
        <div class="title">
            mvvm方式
        </div>
        <div class="img-container" id="vmCover" :controller="pictureShow">
            <a href="#" class="zxx_image_list" ms-for="(key,el) in @imgArr">
                <img class="zxx_image" :attr="{src:@el}" />
            </a>           
        </div>
    </div>
    <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
    <script src="https://unpkg.com/avalon2@2.2.8/dist/avalon.js"></script>
    <script>
        let mvvmImg = avalon.define({
            $id: 'pictureShow',
            imgArr: []
        });
        let $img = [
                '../images/imgcommon1.jpg',
                '../images/imgcommon2.jpg',
                '../images/imgcommon3.jpg',
                '../images/imgcommon4.jpg',
                '../images/imgcommon5.jpg',
                '../images/imgcommon6.jpg',
                '../images/imgcommon1.jpg',
                '../images/imgcommon2.jpg',
                '../images/imgcommon3.jpg',
                '../images/imgcommon4.jpg',
                '../images/imgcommon5.jpg',
                '../images/imgcommon6.jpg',
            ];
        let count = 0;
        var addImg = function(){

			if(count >= $img.length){

				$(".finishedInfo").css("display","block");
				return;
			}
			else{

                //jq way
				var picHref = $("<a></a>").attr("class","zxx_image_list");
				var picSrc = $("<img></img>").attr("src",$img[count]).attr("class","zxx_image");
				picHref.append(picSrc);
                picHref.appendTo($("#jqCover"));
                
                //vm way
                mvvmImg.imgArr.push($img[count]);

				count++;
			}
		};
		$("#add").click(function(){
			addImg();							
		});
    </script>

</body>
</html>

　　

　　

posted @ 2017-12-06 14:37  柠檬张先生  阅读(300)  评论(0)  编辑  收藏  举报