how to add love.js

[nyz123]

点击页面出现爱心效果。
love.js 文件如下:

!function(e,t,a){function r(){for(var e=0;e<n.length;e++)n[e].alpha<=0?(t.body.removeChild(n[e].el),n.splice(e,1)):(n[e].y--,n[e].scale+=.004,n[e].alpha-=.013,n[e].el.style.cssText="left:"+n[e].x+"px;top:"+n[e].y+"px;opacity:"+n[e].alpha+";transform:scale("+n[e].scale+","+n[e].scale+") rotate(45deg);background:"+n[e].color+";z-index:99999");requestAnimationFrame(r)}var n=[];e.requestAnimationFrame=e.requestAnimationFrame||e.webkitRequestAnimationFrame||e.mozRequestAnimationFrame||e.oRequestAnimationFrame||e.msRequestAnimationFrame||function(e){setTimeout(e,1e3/60)},function(e){var a=t.createElement("style");a.type="text/css";try{a.appendChild(t.createTextNode(e))}catch(t){a.styleSheet.cssText=e}t.getElementsByTagName("head")[0].appendChild(a)}(".heart{width: 10px;height: 10px;position: fixed;background: #f00;transform: rotate(45deg);-webkit-transform: rotate(45deg);-moz-transform: rotate(45deg);}.heart:after,.heart:before{content: '';width: inherit;height: inherit;background: inherit;border-radius: 50%;-webkit-border-radius: 50%;-moz-border-radius: 50%;position: fixed;}.heart:after{top: -5px;}.heart:before{left: -5px;}"),function(){var a="function"==typeof e.onclick&&e.onclick;e.onclick=function(e){a&&a(),function(e){var a=t.createElement("div");a.className="heart",n.push({el:a,x:e.clientX-5,y:e.clientY-5,scale:1,alpha:1,color:"rgb("+~~(255*Math.random())+","+~~(255*Math.random())+","+~~(255*Math.random())+")"}),t.body.appendChild(a)}(e)}}(),r()}(window,document);

[HuangGuoY]

我补充下步骤：
这个love.js是放到soure/js里面
然后在layout/parial目录下的layout.pug加上script(src= url_for('js/love.js'))