 <span class="hljs-keyword">var head = <span class="hljs-built_in">document.getElementsByTagName(<span class="hljs-string">'head')[<span class="hljs-number">0] || <span class="hljs-built_in">document.body;
<span class="hljs-function"><span class="hljs-keyword">function <span class="hljs-title">loadJsModule(<span class="hljs-params">url) {
<span class="hljs-keyword">var script = <span class="hljs-built_in">document.createElement(<span class="hljs-string">'script');
script.charset = <span class="hljs-string">'utf-8';
script.type = <span class="hljs-string">'text/javascript';
script.onload = script.onreadystatechange = <span class="hljs-function"><span class="hljs-keyword">function(<span class="hljs-params">) {
<span class="hljs-keyword">if (!<span class="hljs-keyword">this.readyState || <span class="hljs-keyword">this.readyState === <span class="hljs-string">'loaded' || <span class="hljs-keyword">this.readyState === <span class="hljs-string">'complete') {
</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
fastclick是将事件绑定到你传的元素（一般是<span class="hljs-built_in">document.body）
② 在touchstart和touchend后（会手动获取当前点击el），如果是类click事件便手动触发了dom元素的click事件
所以click事件在touchend便被触发，整个响应速度就起来了，触发实际与zepto tap一样
既然浏览器有这<span class="hljs-number">300ms的延迟，那么我们来代替浏览器判断，手动触发click事件，这也是fastClick的解决方案。
</span></span>
【当margin/padding取形式为 百分比的值时，无论是left/right，还是 top/bottom，都是以 父元素的width为参照物的！】
Original: https://www.cnblogs.com/libin-1/p/7712802.html
Author: 最骚的就是你
Title: 杂七杂八
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