46 lines
1.6 KiB
JavaScript
46 lines
1.6 KiB
JavaScript
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(function ($) {
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$.fn.countTo = function (options) {
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// merge the default plugin settings with the custom options
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options = $.extend({}, $.fn.countTo.defaults, options || {});
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// how many times to update the value, and how much to increment the value on each update
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var loops = Math.ceil(options.speed / options.refreshInterval),
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increment = (options.to - options.from) / loops;
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return $(this).each(function () {
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var _this = this,
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loopCount = 0,
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value = options.from,
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interval = setInterval(updateTimer, options.refreshInterval);
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function updateTimer() {
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value += increment;
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loopCount++;
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$(_this).html(value.toFixed(options.decimals));
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if (typeof options.onUpdate == "function") {
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options.onUpdate.call(_this, value);
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}
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if (loopCount >= loops) {
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clearInterval(interval);
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value = options.to;
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if (typeof options.onComplete == "function") {
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options.onComplete.call(_this, value);
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}
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}
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}
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});
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};
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$.fn.countTo.defaults = {
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from: 0, // the number the element should start at
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to: 100, // the number the element should end at
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speed: 1000, // how long it should take to count between the target numbers
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refreshInterval: 100, // how often the element should be updated
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decimals: 0, // the number of decimal places to show
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onUpdate: null, // callback method for every time the element is updated,
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onComplete: null, // callback method for when the element finishes updating
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};
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})(jQuery);
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