Lazy Line painter

HTML

<div id="promise"></div>

JavaScript

/*
 * Lazy Line Painter
 * SVG Stroke animation.
 *
 * https://github.com/camoconnell/lazy-line-painter
 * http://www.camoconnell.com
 *
 * Licensed under the MIT license.
 *
 */
(function(e){var g={init:function(a){return this.each(function(){var b=e(this),c=b.data("lazyLinePainter");b.addClass("lazy-line");if(!c){var c=e.extend({width:null,height:null,strokeWidth:2,strokeColor:"#000",strokeOverColor:null,strokeCap:"round",strokeJoin:"round",strokeOpacity:1,arrowEnd:"none",onComplete:null,onStart:null,delay:null,overrideKey:null,drawSequential:!0,speedMultiplier:1,reverse:!1,responsive:!1},a),d=c.overrideKey?c.overrideKey:b.attr("id").replace("#",""),f=c.svgData[d].dimensions.width,
l=c.svgData[d].dimensions.height;c.svgData=c.svgData[d].strokepath;null===c.width&&(c.width=f);null===c.height&&(c.height=l);c.responsive||b.css({width:c.width,height:c.height});d="0 0 "+f+" "+l;f=document.createElementNS("http://www.w3.org/2000/svg","svg");f.setAttributeNS(null,"viewBox",d);f.setAttribute("xmlns","http://www.w3.org/2000/svg");c.svg=e(f);b.append(c.svg);b.data("lazyLinePainter",c)}})},paint:function(){return this.each(function(){var a=e(this).data("lazyLinePainter"),b=function(){a.paths=
[];a.longestDuration=0;for(var b=a.playhead=0,d=0,f=0,d=0;d<a.svgData.length;d++)b=a.svgData[d].duration*a.speedMultiplier,f+=b;for(d=0;d<a.svgData.length;d++){var e=m(a,d),h=e.getTotalLength();e.style.strokeDasharray=h+" "+h;e.style.strokeDashoffset=h;e.style.display="block";e.getBoundingClientRect();b=a.svgData[d].duration*a.speedMultiplier;b>a.longestDuration&&(a.longestDuration=b);var g;g=a.reverse?f-=b:a.playhead;a.paths.push({duration:b,drawStartTime:g,path:e,length:h});a.playhead+=b}a.totalDuration=
a.drawSequential?a.playhead:a.longestDuration;a.rAF=requestAnimationFrame(function(b){k(b,a)});if(null!==a.onStart)a.onStart()};null===a.delay?b():setTimeout(b,a.delay)})},pauseResume:function(){return this.each(function(){var...