有趣的JS插件

Posted 2020-11-01 supper李狗嗨

1、随鼠标移动的动态背景线条

/**
 * Copyright (c) 2016 hustcc
 * License: MIT
 * Version: v1.0.1
 * GitHub: https://github.com/hustcc/canvas-nest.js
**/
!function(){function n(n,e,t){return n.getAttribute(e)||t}function e(n){return document.getElementsByTagName(n)}function t(){var t=e("script"),o=t.length,i=t[o-1];return{l:o,z:n(i,"zIndex",-1),o:n(i,"opacity",.5),c:n(i,"color","0,0,0"),n:n(i,"count",99)}}function o(){a=m.width=window.innerWidth||document.documentElement.clientWidth||document.body.clientWidth,c=m.height=window.innerHeight||document.documentElement.clientHeight||document.body.clientHeight}function i(){r.clearRect(0,0,a,c);var n,e,t,o,m,l;s.forEach(function(i,x){for(i.x+=i.xa,i.y+=i.ya,i.xa*=i.x>a||i.x<0?-1:1,i.ya*=i.y>c||i.y<0?-1:1,r.fillRect(i.x-.5,i.y-.5,1,1),e=x+1;e<u.length;e++)n=u[e],null!==n.x&&null!==n.y&&(o=i.x-n.x,m=i.y-n.y,l=o*o+m*m,l<n.max&&(n===y&&l>=n.max/2&&(i.x-=.03*o,i.y-=.03*m),t=(n.max-l)/n.max,r.beginPath(),r.lineWidth=t/2,r.strokeStyle="rgba("+d.c+","+(t+.2)+")",r.moveTo(i.x,i.y),r.lineTo(n.x,n.y),r.stroke()))}),x(i)}var a,c,u,m=document.createElement("canvas"),d=t(),l="c_n"+d.l,r=m.getContext("2d"),x=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(n){window.setTimeout(n,1e3/45)},w=Math.random,y={x:null,y:null,max:2e4};m.id=l,m.style.cssText="position:fixed;top:0;left:0;z-index:"+d.z+";opacity:"+d.o,e("body")[0].appendChild(m),o(),window.onresize=o,window.onmousemove=function(n){n=n||window.event,y.x=n.clientX,y.y=n.clientY},window.onmouseout=function(){y.x=null,y.y=null};for(var s=[],f=0;d.n>f;f++){var h=w()*a,g=w()*c,v=2*w()-1,p=2*w()-1;s.push({x:h,y:g,xa:v,ya:p,max:6e3})}u=s.concat([y]),setTimeout(function(){i()},100)}();

 也可以直接引用

<script type="text/javascript" src="https://cdn.bootcss.com/canvas-nest.js/1.0.1/canvas-nest.min.js"></script>　

 

2、向上飘飞的字符

单击左键

(function() {var coreSocialistValues = ["瀵屽己", "姘戜富", "鏂囨槑", "鍜岃皭", "鑷敱", "骞崇瓑", "鍏", "娉曟不", "鐖卞浗", "鏁笟", "璇氫俊", "鍙嬪杽"], index = Math.floor(Math.random() * coreSocialistValues.length);document.body.addEventListener(‘click‘, function(e) {if (e.target.tagName == ‘A‘) {return;}var x = e.pageX, y = e.pageY, span = document.createElement(‘span‘);span.textContent = coreSocialistValues[index];index = (index + 1) % coreSocialistValues.length;span.style.cssText = [‘z-index: 9999999; position: absolute; font-weight: bold; color: #ff6651; top: ‘, y - 20, ‘px; left: ‘, x, ‘px;‘].join(‘‘);document.body.appendChild(span);animate(span);});function animate(el) {var i = 0, top = parseInt(el.style.top), id = setInterval(frame, 16.7);function frame() {if (i > 180) {clearInterval(id);el.parentNode.removeChild(el);} else {i+=2;el.style.top = top - i + ‘px‘;el.style.opacity = (180 - i) / 180;}}}}())

3、 复制提示

<script type="text/javascript">document.body.oncopy = function () {
        alert("复制成功！若要转载请务必保留原文链接，申明来源，谢谢合作！");
    }
</script>