如何让计数器只在视图中加载?

我是jQuery的新手。我找到了一个计数器的解决方案，它可以以%的形式显示节省。

我遇到的问题是，它在页面加载时立即运行，并且元素在屏幕下方稍远，并且它失去了效果，因为当访问者看到网站时，计数器已经达到了数字。

我需要等待加载，直到它进入浏览器的视图。谢谢你的帮助。谢谢你。

(function ($) {
	$.fn.countTo = function (options) {
		options = options || {};
		return $(this).each(function () {
			// set options for current element
			var settings = $.extend({}, $.fn.countTo.defaults, {
				from:            $(this).data('from'),
				to:              $(this).data('to'),
				speed:           $(this).data('speed'),
				refreshInterval: $(this).data('refresh-interval'),
				decimals:        $(this).data('decimals')
			}, options);
			// how many times to update the value, and how much to increment the value on each update
			var loops = Math.ceil(settings.speed / settings.refreshInterval),
				increment = (settings.to - settings.from) / loops;
			// references & variables that will change with each update
			var self = this,
				$self = $(this),
				loopCount = 0,
				value = settings.from,
				data = $self.data('countTo') || {};
			$self.data('countTo', data);
			// if an existing interval can be found, clear it first
			if (data.interval) {
				clearInterval(data.interval);
			}
			data.interval = setInterval(updateTimer, settings.refreshInterval);
			// initialize the element with the starting value
			render(value);
			function updateTimer() {
				value += increment;
				loopCount++;
				render(value);
				if (typeof(settings.onUpdate) == 'function') {
					settings.onUpdate.call(self, value);
				}
				if (loopCount >= loops) {
					// remove the interval
					$self.removeData('countTo');
					clearInterval(data.interval);
					value = settings.to;
					if (typeof(settings.onComplete) == 'function') {
						settings.onComplete.call(self, value);
					}
				}
			}
			function render(value) {
				var formattedValue = settings.formatter.call(self, value, settings);
				$self.text(formattedValue);
			}
		});
	};
	$.fn.countTo.defaults = {
		from: 0,               // the number the element should start at
		to: 0,                 // the number the element should end at
		speed: 5000,           // how long it should take to count between the target numbers
		refreshInterval: 1000,  // how often the element should be updated
		decimals: 0,           // the number of decimal places to show
		formatter: formatter,  // handler for formatting the value before rendering
		onUpdate: null,        // callback method for every time the element is updated
		onComplete: null       // callback method for when the element finishes updating
	};
	function formatter(value, settings) {
		return value.toFixed(settings.decimals);
	}
}(jQuery));

<div class="ui-129 text-center">
  <div id="counter" class="counter-item">
    <!-- Icon -->
    <i class="fa fa-usd green">                                              
      <!-- Number -->
    <span class="number-count" data-from="0" data-to="28" data-speed="5000" data-refresh-interval="10"></span>%
    </i>
    <!-- Border -->
    <hr class="br-green" />
    <!-- Heading -->
    <h5>less than the "other guys"</h5>
  </div>
</div>
<!-- End CountUP -->
<script> <!-- I have this script in my custom.js folder, not in the html -->
    $(document).ready(function(){
        $('.number-count').countTo();
			
    });		
</script>

所有的CSS渲染和运行正常…如果我需要在这里添加，请告诉我，我很乐意这样做。