Example of making a simple bar chart with jQuery_jquery

The example in this article describes how to create a simple histogram with jQuery. Share it with everyone for your reference. The specific implementation method is as follows:

Html part:

Copy code The code is as follows:

CSS part:

Copy code The code is as follows:

/*The following is the histogram style*/
.histogram-container{position:relative;margin-left:60px;margin-top:10px;margin-bottom:25px;}
.histogram-bg-line{border:#999 solid;border-width:0 0px 1px 1px;border-right-color:#eee;overflow:hidden;width:99%;}
.histogram-bg-line ul{overflow:hidden;border:#eee solid;border-width:1px 0 0 0;clear:both;}
.histogram-bg-line li{float:left;overflow:hidden;background:#fff;}
.histogram-bg-line li div{border-right:1px #eee solid;}
.histogram-content{position:absolute;left:0px;top:0;width:99%;height:100%;}
.histogram-content ul{height:100%;}
.histogram-content li{float:left;height:100%;text-align:center;position:relative;}
.histogram-box{position:relative;display:inline-block;height:100%;width:20px;}
.histogram-content li a{position:absolute;bottom:0;right:0;display:block;width:20px;font-size:0;line-height:0;}
.histogram-content li .histogram-name{position:absolute;bottom:-20px;left:0px;white-space:nowrap;display:inline-block;width:100%;font-size:12px;overflow:hidden; }
.histogram-y{position:absolute;left:-60px;top:-10px;font:12px/1.8 verdana,arial;}
.histogram-y li{text-align:right;width:55px;padding-right:5px;color:#333;}
.histogram-bg-line li div,.histogram-y li{height:30px;/*Control the height of the cell and the height of the percentage, so that the percentage and the line are aligned*/}

Js part:

Copy code The code is as follows:

$(function(){
var dataArr={
"data":[
{"id":1,"name":"Baidu","per":"10"},
{"id":2,"name":"Tencent","per":"20"},
{"id":3,"name":"Sina","per":"10"},
{"id":4,"name":"NetEase","per":"44"},
{"id":5,"name":"Sohu","per":"50"},
              {"id":5,"name":"Little Goby","per":"69"},
{"id":5,"name":"人人网","per":"72"},
{"id":5,"name":"iQiyi","per":"88"},
{"id":5,"name":"Qihoo 360","per":"92"},
{"id":5,"name":"Alibaba","per":"15"},
{"id":5,"name":"Alibaba","per":"10"}
] ]
};
new histogram().init(dataArr.data);
});

function histogram(){
var controls={};
var bgColor=new Array("#666666","#21AA7C","#2277BB","#dc7644","#BBAA22","#AA22AA","#338800","#1099EE","#ffcc33" ,"#ED3810");
This.init=function(data,y){
setControls();
        buildHtml(data,y);
}  
Function setControls(){
controls.histogramContainer=$("#histogram-container");
controls.histogramBgLineUL=controls.histogramContainer.children("div.histogram-bg-line");
controls.histogramContentUL=controls.histogramContainer.children("div.histogram-content");
controls.histogramY=controls.histogramContainer.children("div.histogram-y");
}  
Function buildHtml(data,y){
      var len=data.length,perArr=new Array(),maxNum,maxTotal,yStr='';
      var contentStr='',bgLineStr='',bgLineAll='';
var widthPer=Math.floor(100/len);
          minWidth=len*21 60; 
         controls.histogramContainer.css("min-width",minWidth "px");
                                                                            for(var a=0;a              perArr[a]=parseInt(data[a]['per']);                                                                                                                                                     maxNum=String(perArr.max());
If(maxNum.length>2){
            var x=parseInt(maxNum.substr(maxNum.length-2,1)) 1;  
               maxTotal=Math.floor(parseInt(maxNum/100))*100 x*10;
          }else{ 
                 maxTotal=Math.floor(parseInt(maxNum/10))*10 10;
                                                                                                                                                                                                       //y-axis part
If(y=="%"){
yStr ='

100%

80%

60%

40%

0%

';           }else{ 
            var avg=maxTotal/5;  
for(i=5;i>=0;i--){
                yStr ='

' avg*i '

'; 
            } 
        } 
         
        //柱状条部分 
        for(var i=0;i             var per=Math.floor(parseInt(data[i]['per'])/maxTotal*100); 
            var n=Math.floor(parseInt(per)/10); 
            contentStr ='

'; 
            contentStr ='' data[i]['name'] ''; 
            contentStr ='

'; 
            bgLineStr ='

'; 
        } 
         
        //背景方格部分 
        for(var j=0;j<5;j ){ 
            bgLineAll ='

' bgLineStr '

'; 
        } 
        bgLineAll='

' bgLineAll '

'; 
        contentStr='

' contentStr '

'; 
        yStr='

' yStr '

'; 
        controls.histogramContainer.html(bgLineAll contentStr yStr); 
        controls.histogramContainer.css("height",controls.histogramContainer.height() "px");//主要是解决IE6中的问题       
    } 
} 
Array.prototype.max = function(){//最大值 
 return Math.max.apply({},this)  
}

希望本文所述对大家的jQuery程序设计有所帮助。