Create picture clock effects with jquery_jquery

1. Generate digital clock

<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
window.onload=function(){
 var oBody=document.body;
 var oP=document.getElementById("time");
 setInterval(fnTime,1000);
 fnTime();
 function fnTime(){
  var myTime=new Date();
  var iHours=myTime.getHours();
  var iMin=myTime.getMinutes();
  var iSec=myTime.getSeconds();
  var str=toTwo(iHours)+toTwo(iMin)+toTwo(iSec);
  oP.innerHTML=str;
 }
 
}
/*将数字转换为字符串且一位数显示为两位，*/
function toTwo(n){
 return n<10&#63;'0'+n:''+n;
}
</script>

<p id="time"></p>

Effect:

2. Convert numbers into pictures
Method 1:
The picture name is a number, written in the simplest way.

Pictures used:

Write a function strToImg(str) to convert each number in a string str into the corresponding image, and then dynamically create the a1f02c36ba31691bcfe87b2722de723b tag.
Note: The content in the e388a4556c0f65e1904146cc1a846bee tag needs to be cleared each time it is called.

<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
window.onload=function(){
 var oBody=document.body;
 var oP=document.getElementById("time");
 setInterval(fnTime,1000);
 fnTime();
 function fnTime(){
  var myTime=new Date();
  var iHours=myTime.getHours();
  var iMin=myTime.getMinutes();
  var iSec=myTime.getSeconds();
  var str=toTwo(iHours)+toTwo(iMin)+toTwo(iSec);
  //oP.innerHTML=str;
  strToImg(str);
 }
 
}
/*将数字转换为字符串且一位数显示为两位，*/
function toTwo(n){
 return n<10&#63;'0'+n:''+n;
}

function strToImg(str){
 var str=str;
 $("#time").empty();
 for(var i=0;i<str.length;i++){
  var oImg=$("<img />");
  oImg.attr("src","images/"+str.charAt(i)+".png");
  $("#time").append(oImg);
 }
}
</script>

<p id="time"></p>

Method 2: [Not applicable]

If the image name is not a pure number, save it in an array.

This method operates too many DOMs and is very inefficient. Sometimes the 6 nodes are not fully displayed.

Because my original intention was to check the information and saw that writing like this involves image preloading, and I thought it could speed up the efficiency. I tried it, but now it seems that I still don’t understand the principle of preloading, leaving a pitfall.

<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
window.onload=function(){
 var oBody=document.body;
 var oP=document.getElementById("time");
 
 setInterval(fnTime,1000);
 fnTime();
}

function fnTime(){
  var myTime=new Date();
  var iHours=myTime.getHours();
  var iMin=myTime.getMinutes();
  var iSec=myTime.getSeconds();
  var str=toTwo(iHours)+toTwo(iMin)+toTwo(iSec);
  //oP.innerHTML=str;
  strToImg(str);
}

/*将数字转换为字符串且一位数显示为两位，*/
function toTwo(n){
 return n<10&#63;'0'+n:''+n;
}

function strToImg(str){
 var str=str;

 var imageArray=[];
 for(i=0;i<11;i++){
 imageArray[i]=new Image();
 }
 //将个图像定义给相应的数组元素，使数组元素下标与图像所对应的数字字符一一对应
 imageArray[0].src="images/0.png";
 imageArray[1].src="images/1.png";
 imageArray[2].src="images/2.png";
 imageArray[3].src="images/3.png";
 imageArray[4].src="images/4.png";
 imageArray[5].src="images/5.png";
 imageArray[6].src="images/6.png";
 imageArray[7].src="images/7.png";
 imageArray[8].src="images/8.png";
 imageArray[9].src="images/9.png";
 imageArray[10].src="images/fh.png";
 
 
 $("#time").empty();
 for(var i=0;i<str.length;i++){
  var oImg=imageArray[str.charAt(i)];
  //oImg.attr("src",imageArray[i].src);
  $("#time").append(oImg);
 }
}
</script>

<p id="time"></p>

Method 3:
Hardcode the a1f02c36ba31691bcfe87b2722de723b tag in the html.

<p id="time"><img src="images/0.png"/><img src="images/0.png"/><img src="images/0.png"/><img src="images/0.png"/><img src="images/0.png"/><img src="images/0.png"/></p>

<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
window.onload=function(){
 var oBody=document.body;
 var oP=document.getElementById("time");
 
 setInterval(fnTime,1000);
 fnTime();
}

function fnTime(){
  var myTime=new Date();
  var iHours=myTime.getHours();
  var iMin=myTime.getMinutes();
  var iSec=myTime.getSeconds();
  var str=toTwo(iHours)+toTwo(iMin)+toTwo(iSec);
  //oP.innerHTML=str;
  strToImg(str);
}
 var imageArray=[];
 //将个图像定义给相应的数组元素，使数组元素下标与图像所对应的数字字符一一对应
 imageArray[0]="images/0.png";
 imageArray[1]="images/1.png";
 imageArray[2]="images/2.png";
 imageArray[3]="images/3.png";
 imageArray[4]="images/4.png";
 imageArray[5]="images/5.png";
 imageArray[6]="images/6.png";
 imageArray[7]="images/7.png";
 imageArray[8]="images/8.png";
 imageArray[9]="images/9.png";
 imageArray[10]="images/fh.png";

/*将数字转换为字符串且一位数显示为两位，*/
function toTwo(n){
 return n<10&#63;'0'+n:''+n;
}

function strToImg(str){
 var str=str;
 for(var i=0;i<str.length;i++){
   $("#time").find("img").eq(i).attr("src",imageArray[str.charAt(i)]);
 }
}
</script>

Method 4: [Recommended]
Dynamicly generate a1f02c36ba31691bcfe87b2722de723b tags and write them efficiently.

<p id="time"></p>

<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
window.onload=function(){
 var oBody=document.body;
 var oP=document.getElementById("time");
 
 setInterval(fnTime,1000);
 fnTime();
}

function fnTime(){
  var myTime=new Date();
  var iHours=myTime.getHours();
  var iMin=myTime.getMinutes();
  var iSec=myTime.getSeconds();
  var str=toTwo(iHours)+toTwo(iMin)+toTwo(iSec);
  //oP.innerHTML=str;
  strToImg(str);
}

/*将数字转换为字符串且一位数显示为两位，*/
function toTwo(n){
 return n<10&#63;'0'+n:''+n;
}

var imageArray=[];
 //将个图像定义给相应的数组元素，使数组元素下标与图像所对应的数字字符一一对应
 imageArray[0]="images/0.png";
 imageArray[1]="images/1.png";
 imageArray[2]="images/2.png";
 imageArray[3]="images/3.png";
 imageArray[4]="images/4.png";
 imageArray[5]="images/5.png";
 imageArray[6]="images/6.png";
 imageArray[7]="images/7.png";
 imageArray[8]="images/8.png";
 imageArray[9]="images/9.png";
 imageArray[10]="images/fh.png";
 

function strToImg(str){
 var str=str;
 var tempHtml='';
 for(var i=0;i<str.length;i++){
  var imgHtml="<img src="+imageArray[str.charAt(i)]+"/>";
 tempHtml+=imgHtml;  
 }
 $("#time").html(tempHtml);
}
</script>

The above is all the code for creating picture clock effects with jquery. I hope you like it.