上週五應着公司臨時需求,一天的時間解決掉官網(ps:比較簡單哈哈),需求裏面有一個特效就是數字遞增到指定的數值,其實JS寫也不復雜的,可是我發現一個js小插件,這個插件輕巧簡單,用起來也很是簡單實用。在這裏分享給小盆友們吧,喜歡的直接拿走。css
上面就是這個插件的效果,咱們來看一下怎麼使用的吧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>
上面咱們來了解兩個關鍵的東西:this
ps: 這裏的class和id 根據你們各自的修改去調整就行了,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) };
以上就是代碼的所有了,css部分就不在這裏顯示了,demo下載的小夥伴在下面點擊下載吧!.net
其實這個插件可擴展性很大的,至於小夥伴喜歡什麼樣子的顯示本身動手改造吧!插件
demo下載請點擊code