正则表达式可以用于验证
-
验证 email:
const regMail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
-
验证时间格式:yyyy-mm-dd hh:mm:ss
const regTime = /^(\d{4})(-)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/
获取当前时间:
function p(s) {
return s < 10 ? '0' + s : s
}
function getTimeNow() {
let timeNow
var myDate = new Date()
//获取当前年
var year = myDate.getFullYear()
//获取当前月
var month = myDate.getMonth() + 1
//获取当前日
var date = myDate.getDate()
var h = myDate.getHours() //获取当前小时数(0-23)
var m = myDate.getMinutes() //获取当前分钟数(0-59)
var s = myDate.getSeconds()
timeNow =
year + '-' + p(month) + '-' + p(date) + ' ' + p(h) + ':' + p(m) + ':' + p(s)
return timeNow
}