https://speakin.co/assets/js/jquery.counterup.min.js

1/*!
2 * jquery.counterup.js 1.0
3 *
4 * Copyright 2013, Benjamin Intal http://gambit.ph @bfintal
5 * Released under the GPL v2 License
6 *
7 * Date: Nov 26, 2013
8 */
9(function ($) {
10    "use strict";
11    $.fn.counterUp = function (options) {
12        // Defaults
13        var settings = $.extend({
14            'time': 400,
15            'delay': 10
16        }, options);
17        return this.each(function () {
18            // Store the object
19            var $this = $(this);
20            var $settings = settings;
21            var counterUpper = function () {
22                var nums = [];
23                var divisions = $settings.time / $settings.delay;
24                var num = $this.text();
25                var isComma = /[0-9]+,[0-9]+/.test(num);
26                num = num.replace(/,/g, '');
27                var isInt = /^[0-9]+$/.test(num);
28                var isFloat = /^[0-9]+\.[0-9]+$/.test(num);
29                var decimalPlaces = isFloat ? (num.split('.')[1] || []).length : 0;
30                // Generate list of incremental numbers to display
31                for (var i = divisions; i >= 1; i--) {
32                    // Preserve as int if input was int
33                    var newNum = parseInt(num / divisions * i);
34                    // Preserve float if input was float
35                    if (isFloat) {
36                        newNum = parseFloat(num / divisions * i).toFixed(decimalPlaces);
37                    }
38                    // Preserve commas if input had commas
39                    if (isComma) {
40                        while (/(\d+)(\d{3})/.test(newNum.toString())) {
41                            newNum = newNum.toString().replace(/(\d+)(\d{3})/, '$1' + ',' + '$2');
42                        }
43                    }
44                    nums.unshift(newNum);
45                }
46                $this.data('counterup-nums', nums);
47                $this.text('0');
48                // Updates the number until we're done
49                var f = function () {
50                    $this.text($this.data('counterup-nums').shift());
51                    if ($this.data('counterup-nums').length) {
52                        setTimeout($this.data('counterup-func'), $settings.delay);
53                    } else {
54                        delete $this.data('counterup-nums');
55                        $this.data('counterup-nums', null);
56                        $this.data('counterup-func', null);
57                    }
58                };
59                $this.data('counterup-func', f);
60
61                // Start the count up
62                setTimeout($this.data('counterup-func'), $settings.delay);
63
64                // Destroy waypoint so that it will be triggered only once
65                this.destroy();
66            };
67
68            // Perform counts when the element gets into view
69            $this.waypoint(counterUpper, {
70                offset: '100%'
71            });
72        });
73
74    };
75
76})(jQuery);