1 line
2.7 KiB
JavaScript
1 line
2.7 KiB
JavaScript
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function countUp(a,b,c,d,e,f){for(var g=0,h=["webkit","moz","ms"],i=0;i<h.length&&!window.requestAnimationFrame;++i)window.requestAnimationFrame=window[h[i]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[h[i]+"CancelAnimationFrame"]||window[h[i]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(a){var c=(new Date).getTime(),d=Math.max(0,16-(c-g)),e=window.setTimeout(function(){a(c+d)},d);return g=c+d,e}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(a){clearTimeout(a)}),this.options=f||{useEasing:!0,useGrouping:!0,separator:",",decimal:"."},""==this.options.separator&&(this.options.useGrouping=!1);var j=this;this.d="string"==typeof a?document.getElementById(a):a,this.startVal=Number(b),this.endVal=Number(c),this.countDown=this.startVal>this.endVal?!0:!1,this.startTime=null,this.timestamp=null,this.remaining=null,this.frameVal=this.startVal,this.rAF=null,this.decimals=Math.max(0,d||0),this.dec=Math.pow(10,this.decimals),this.duration=1e3*e||2e3,this.version=function(){return"1.1.2"},this.easeOutExpo=function(a,b,c,d){return 1024*c*(-Math.pow(2,-10*a/d)+1)/1023+b},this.count=function(a){null===j.startTime&&(j.startTime=a),j.timestamp=a;var b=a-j.startTime;if(j.remaining=j.duration-b,j.options.useEasing)if(j.countDown){var c=j.easeOutExpo(b,0,j.startVal-j.endVal,j.duration);j.frameVal=j.startVal-c}else j.frameVal=j.easeOutExpo(b,j.startVal,j.endVal-j.startVal,j.duration);else if(j.countDown){var c=(j.startVal-j.endVal)*(b/j.duration);j.frameVal=j.startVal-c}else j.frameVal=j.startVal+(j.endVal-j.startVal)*(b/j.duration);j.frameVal=Math.round(j.frameVal*j.dec)/j.dec,j.frameVal=j.countDown?j.frameVal<j.endVal?j.endVal:j.frameVal:j.frameVal>j.endVal?j.endVal:j.frameVal,j.d.innerHTML=j.formatNumber(j.frameVal.toFixed(j.decimals)),b<j.duration?j.rAF=requestAnimationFrame(j.count):null!=j.callback&&j.callback()},this.start=function(a){return j.callback=a,isNaN(j.endVal)||isNaN(j.startVal)?(console.log("countUp error: startVal or endVal is not a number"),j.d.innerHTML="--"):j.rAF=requestAnimationFrame(j.count),!1},this.stop=function(){cancelAnimationFrame(j.rAF)},this.reset=function(){j.startTime=null,j.startVal=b,cancelAnimationFrame(j.rAF),j.d.innerHTML=j.formatNumber(j.startVal.toFixed(j.decimals))},this.resume=function(){j.startTime=null,j.duration=j.remaining,j.startVal=j.frameVal,requestAnimationFrame(j.count)},this.formatNumber=function(a){a+="";var b,c,d,e;if(b=a.split("."),c=b[0],d=b.length>1?j.options.decimal+b[1]:"",e=/(\d+)(\d{3})/,j.options.useGrouping)for(;e.test(c);)c=c.replace(e,"$1"+j.options.separator+"$2");return c+d},j.d.innerHTML=j.formatNumber(j.startVal.toFixed(j.decimals))}
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