JS 获取当前日期时间 （如：2017-03-17 18:55:03 星期六）

function getNowDate() {var date    = new Date();var sign1   = "-";var sign2   = ":";var year    = date.getFullYear() // 年var month   = date.getMonth() + 1; // 月var day     = date.getDate(); // 日var hour    = date.getHours(); // 时var minutes = date.getMinutes(); // 分var seconds = date.getSeconds() //秒var weekArr = ['星期一', '星期二', '星期三', '星期四', '星期五', '星期六', '星期天'];var week    = weekArr[date.getDay()];// 给一位数数据前面加 “0”if (month >= 1 && month <= 9) {month = "0" + month;}if (day >= 0 && day <= 9) {day = "0" + day;}if (hour >= 0 && hour <= 9) {hour = "0" + hour;}if (minutes >= 0 && minutes <= 9) {minutes = "0" + minutes;}if (seconds >= 0 && seconds <= 9) {seconds = "0" + seconds;}var currentdate = year + sign1 + month + sign1 + day + " " + hour + sign2 + minutes + sign2 + seconds + " " + week;return currentdate;}console.log(getNowDate());