layui.define(["jquery", "element"], function (exports) {
  "use strict";

  var MOD_NAME = "count",
    $ = layui.jquery,
    element = layui.element;

  var count = new (function () {
    this.up = function (targetEle, options) {
      options = options || {};

      var $this = document.getElementById(targetEle),
        time = options.time,
        finalNum = options.num,
        regulator = options.regulator,
        step = finalNum / (time / regulator),
        count = 0.0,
        initial = 0;

      var timer = setInterval(function () {
        count = count + step;
        if (count >= finalNum) {
          clearInterval(timer);
          count = finalNum;
        }
        var t = count.toFixed(options.bit ? options.bit : 0);
        if (t == initial) return;
        initial = t;
        $this.innerHTML = initial;
      }, 30);
    };
  })();
  exports(MOD_NAME, count);
});