摘要:
异步加载src function add(url,cellback){ var script=document.createElement("script"); if (script.readyState) { console.log(script.readyState) script.onread 阅读全文
摘要:
1.元素到可视窗口顶端的距离 $('XXX').offset().top-$(document).scrollTop(); //jq XXXX.getBoundingClientRect().top //js// 举例应用,制作顶飘//$(window).scrollTop() >= $('XXX' 阅读全文