這篇文章主要介紹了JS根據生日算年齡的方法,涉及javascript操作時間的相關技巧,非常簡單實用,需要的朋友可以參考下
本文實例講述了JS依生日算年齡的方法。分享給大家供大家參考。具體實作方法如下:
function parseDate(str){ if(str.match(/^\d{4}[\-\/\s+]\d{1,2}[\-\/\s+]\d{1,2}$/)){ return new Date(str.replace(/[\-\/\s+]/i,'/')); } else if(str.match(/^\d{8}$/)){ return new Date(str.substring(0,4)+'/'+str.substring(4,6)+'/'+str.substring(6)); } else{ return ('时间转换发生错误!'); } } function GetAgeByBrithday(birthday){ var age=-1; var today=new Date(); var todayYear=today.getFullYear(); var todayMonth=today.getMonth()+1; var todayDay=today.getDate(); var birthday=parseDate(birthday); if(parseDate(birthday)!='时间转换发生错误!') { birthdayYear=birthday.getFullYear(); birthdayMonth=birthday.getMonth(); birthdayDay=birthday.getDate(); if(todayYear-birthdayYear<0) { alert("出生日期选择错误!"); } else { if(todayMonth*1-birthdayMonth*1<0) { age = (todayYear*1-birthdayYear*1)-1; } else { if(todayDay-birthdayDay>=0) {//alert(thisDay+'-'+brithd+"_ddd"); age = (todayYear*1-birthdayYear*1); } else { age = (todayYear*1-birthdayYear*1)-1; } } } return age*1; } else { return -1; } }
以上是JS怎麼依生日算年齡實例詳解的詳細內容。更多資訊請關注PHP中文網其他相關文章!