var str = '2019-9-20';str = str.replace(/-/g,"/");var date = new Date(str );var now = new Date();if(date < now) { document.write("过期");} else {var time = date - now;document.write("没过期"); // ...
js输出网站加载耗时详细列表一个开源js,能够轻松输出网页加载耗时详情 var times = function() { var timing = performance.timing; var loadTime = timing.loadEventEnd - timing.navigationStart;/*过早获取时,loadEventEnd有时会是0*/...