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Efficient jquery digital scrolling effect_javascript skills

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May 16, 2016 pm 03:25 PM

jquery

The example in this article describes the code based on jquery digital scrolling effects. It is divided into four situations and shared with you for your reference. The details are as follows:

With delimiter and decimal point:
Only delimiter:
Decimal point only:
No delimiter, no decimal point:

Operation rendering:

The specific code is as follows

<html>
<head>
<title>数字滚动插件</title>
<meta charset="gb2312">
<script src="http://cdn.bootcss.com/jquery/1.8.3/jquery.min.js"></script>
<style>
/*数字滚动插件的CSS可调整样式*/
.mt-number-animate{ font-family: '微软雅黑'; line-height:40px; height: 40px;/*设置数字显示高度*/; font-size: 36px;/*设置数字大小*/ overflow: hidden; display: inline-block; position: relative; }
.mt-number-animate .mt-number-animate-dot{ width: 15px;/*设置分割符宽度*/ line-height: 40px; float: left; text-align: center;}
.mt-number-animate .mt-number-animate-dom{ width: 20px;/*设置单个数字宽度*/ text-align: center; float: left; position: relative; top: 0;}
.mt-number-animate .mt-number-animate-dom .mt-number-animate-span{ width: 100%; float: left;}
</style>
</head>
<body>
<br><br>
有分隔符，有小数点：<div class="numberRun"></div> <br><br>
只有分隔符：<div class="numberRun2"></div> <br><br>
只有小数点：<div class="numberRun3"></div> <br><br>
无分隔符，无小数点：<div class="numberRun4"></div>
 
</body>
<script>
/**
*  by Mantou qq:676015863
*  数字滚动插件 v1.0
*/
;(function($) {
  $.fn.numberAnimate = function(setting) {
    var defaults = {
      speed : 1000,//动画速度
      num : "", //初始化值
      iniAnimate : true, //是否要初始化动画效果
      symbol : '',//默认的分割符号，千，万，千万
      dot : 0 //保留几位小数点
    }
    //如果setting为空，就取default的值
    var setting = $.extend(defaults, setting);
 
    //如果对象有多个，提示出错
    if($(this).length > 1){
      alert("just only one obj!");
      return;
    }
 
    //如果未设置初始化值。提示出错
    if(setting.num == ""){
      alert("must set a num!");
      return;
    }
    var nHtml = '<div class="mt-number-animate-dom" data-num="{{num}}">\
            <span class="mt-number-animate-span">0</span>\
            <span class="mt-number-animate-span">1</span>\
            <span class="mt-number-animate-span">2</span>\
            <span class="mt-number-animate-span">3</span>\
            <span class="mt-number-animate-span">4</span>\
            <span class="mt-number-animate-span">5</span>\
            <span class="mt-number-animate-span">6</span>\
            <span class="mt-number-animate-span">7</span>\
            <span class="mt-number-animate-span">8</span>\
            <span class="mt-number-animate-span">9</span>\
            <span class="mt-number-animate-span">.</span>\
          </div>';
 
    //数字处理
    var numToArr = function(num){
      num = parseFloat(num).toFixed(setting.dot);
      if(typeof(num) == 'number'){
        var arrStr = num.toString().split("");  
      }else{
        var arrStr = num.split("");
      }
      //console.log(arrStr);
      return arrStr;
    }
 
    //设置DOM symbol:分割符号
    var setNumDom = function(arrStr){
      var shtml = '<div class="mt-number-animate">';
      for(var i=0,len=arrStr.length; i<len; i++){
        if(i != 0 && (len-i)%3 == 0 && setting.symbol != "" && arrStr[i]!="."){
          shtml += '<div class="mt-number-animate-dot">'+setting.symbol+'</div>'+nHtml.replace("{{num}}",arrStr[i]);
        }else{
          shtml += nHtml.replace("{{num}}",arrStr[i]);
        }
      }
      shtml += '</div>';
      return shtml;
    }
 
    //执行动画
    var runAnimate = function($parent){
      $parent.find(".mt-number-animate-dom").each(function() {
        var num = $(this).attr("data-num");
        num = (num=="."&#63;10:num);
        var spanHei = $(this).height()/11; //11为元素个数
        var thisTop = -num*spanHei+"px";
        if(thisTop != $(this).css("top")){
          if(setting.iniAnimate){
            //HTML5不支持
            if(!window.applicationCache){
              $(this).animate({
                top : thisTop
              }, setting.speed);
            }else{
              $(this).css({
                'transform':'translateY('+thisTop+')',
                '-ms-transform':'translateY('+thisTop+')',   /* IE 9 */
                '-moz-transform':'translateY('+thisTop+')',  /* Firefox */
                '-webkit-transform':'translateY('+thisTop+')', /* Safari 和 Chrome */
                '-o-transform':'translateY('+thisTop+')',
                '-ms-transition':setting.speed/1000+'s',
                '-moz-transition':setting.speed/1000+'s',
                '-webkit-transition':setting.speed/1000+'s',
                '-o-transition':setting.speed/1000+'s',
                'transition':setting.speed/1000+'s'
              }); 
            }
          }else{
            setting.iniAnimate = true;
            $(this).css({
              top : thisTop
            });
          }
        }
      });
    }
 
    //初始化
    var init = function($parent){
      //初始化
      $parent.html(setNumDom(numToArr(setting.num)));
      runAnimate($parent);
    };
 
    //重置参数
    this.resetData = function(num){
      var newArr = numToArr(num);
      var $dom = $(this).find(".mt-number-animate-dom");
      if($dom.length < newArr.length){
        $(this).html(setNumDom(numToArr(num)));
      }else{
        $dom.each(function(index, el) {
          $(this).attr("data-num",newArr[index]);
        });
      }
      runAnimate($(this));
    }
    //init
    init($(this));
    return this;
  }
})(jQuery);
 
$(function(){
 
  //初始化
  var numRun = $(".numberRun").numberAnimate({num:'15343242.10', dot:2, speed:2000, symbol:","});
  var nums = 15343242.10;
  setInterval(function(){
    nums+= 3433.24;
    numRun.resetData(nums);
  },3000);
 
 
  var numRun2 = $(".numberRun2").numberAnimate({num:'15343242', speed:2000, symbol:","});
  var nums2 = 15343242;
  setInterval(function(){
    nums2+= 1433;
    numRun2.resetData(nums2);
  },2000);
 
 
  var numRun3 = $(".numberRun3").numberAnimate({num:'52353434.343', dot:3, speed:2000});
  var nums3 = 52353434.343;
  setInterval(function(){
    nums3+= 454.521;
    numRun3.resetData(nums3);
  },4000);
 
  var numRun4 = $(".numberRun4").numberAnimate({num:'52353434', speed:2000});
  var nums4 = 52353434;
  setInterval(function(){
    nums4+= 123454;
    numRun4.resetData(nums4);
  },3500);
 
});
</script>
</html>

Copy the code and it will run.

I hope this article will be helpful to everyone in JavaScript programming.

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