JS通过身份证号码获取出生年月日

getBirthdayFromIdCard : function(idCard) {
	  	var birthday = "";
		if(idCard != null && idCard != ""){
			if(idCard.length == 15){
				birthday = "19"+idCard.substr(6,6);
			} else if(idCard.length == 18){
				birthday = idCard.substr(6,8);
			}
		
			birthday = birthday.replace(/(.{4})(.{2})/,"$1-$2-");
		}
		
		return birthday;
	  },

 

// 实例

425125198808083000

// 结果

1988-08-08