上周五应着公司临时需求,一天的时间解决掉官网(ps:比较简单哈哈),需求里面有一个特效就是数字递增到指定的数值,其实JS写也不复杂的,可是我发现一个js小插件,这个插件轻巧简单,用起来也很是简单实用。在这里分享给小盆友们吧,喜欢的直接拿走。css
上面就是这个插件的效果,咱们来看一下怎么使用的吧html
<div class="counter col_fourth"> <h2 class="timer count-title" id="count-number" data-to="300" data-speed="1500"></h2> <p class="count-text ">小月博客</p> </div>
上面咱们来了解两个关键的东西:this
ps: 这里的class和id 根据你们各自的修改去调整就行了,spa
$.fn.countTo = function(a) { a = a || {}; return $(this).each(function() { var c = $.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") }, a); var h = Math.ceil(c.speed / c.refreshInterval), i = (c.to - c.from) / h; var j = this, f = $(this), e = 0, g = c.from, d = f.data("countTo") || {}; f.data("countTo", d); if (d.interval) { clearInterval(d.interval) } d.interval = setInterval(k, c.refreshInterval); b(g); function k() { g += i; e++; b(g); if (typeof(c.onUpdate) == "function") { c.onUpdate.call(j, g) } if (e >= h) { f.removeData("countTo"); clearInterval(d.interval); g = c.to; if (typeof(c.onComplete) == "function") { c.onComplete.call(j, g) } } } function b(m) { var l = c.formatter.call(j, m, c); f.html(l) } }) }; $.fn.countTo.defaults = { from: 0, to: 0, speed: 1000, refreshInterval: 100, decimals: 0, formatter: formatter, onUpdate: null, onComplete: null }; function formatter(b, a) { return b.toFixed(2) } $("#count-number").data("countToOptions", { formatter: function(b, a) { return b.toFixed(2).replace(/\B(?=(?:\d{3})+(?!\d))/g, ",") } }); $(".timer").each(count); function count(a) { var b = $(this); a = $.extend({}, a || {}, b.data("countToOptions") || {}); b.countTo(a) };
以上就是代码的所有了,css部分就不在这里显示了,demo下载的小伙伴在下面点击下载吧!.net
其实这个插件可扩展性很大的,至于小伙伴喜欢什么样子的显示本身动手改造吧!插件
demo下载请点击code