常用的js

//根据选择的日期 计算出年龄

export const birthdayToAge = (strBirthday) => {

    var returnAge,

        strBirthdayArr = strBirthday.split("-"),

        birthYear = strBirthdayArr[0],

        birthMonth = strBirthdayArr[1],

        birthDay = strBirthdayArr[2],

        d = new Date(),

        nowYear = d.getFullYear(),

        nowMonth = d.getMonth() + 1,

        nowDay = d.getDate();

    if (nowYear == birthYear) {

        returnAge = 0; //同年 则为0周岁

    } else {

        var ageDiff = nowYear - birthYear; //年之差

        if (ageDiff > 0) {

            if (nowMonth == birthMonth) {

                var dayDiff = nowDay - birthDay; //日之差

                if (dayDiff < 0) {

                    returnAge = ageDiff - 1;

                } else {

                    returnAge = ageDiff;

                }

            } else {

                var monthDiff = nowMonth - birthMonth; //月之差

                if (monthDiff < 0) {

                    returnAge = ageDiff - 1;

                } else {

                    returnAge = ageDiff;

                }

            }

        } else {

            returnAge = -1; //返回-1 表示出生日期输入错误 晚于今天

        }

    }

    let resAge = ''

    resAge = returnAge;

    var NowYear = d.getFullYear();

    if (resAge > NowYear - 1) {

        resAge = "";

    }

    return resAge

}

// 将日期转换成以横杠连接的年月日

export const dateToConnect = (status) => {

    let res = status.getFullYear() + '-' + _addZero(status.getMonth() + 1) + '-' + _addZero(status.getDate())

    return res

}

 

// 根据身份证号 生成birthday sex age 

export function bornBirSexAge(idNum) {

    let form = {};

    form.birthday = idNum.substring(6, 10) +

        "-" +

        idNum.substring(10, 12) +

        "-" +

        idNum.substring(12, 14);

    form.sex = parseInt(idNum.substr(16, 1)) % 2 == 1 ? "0" : "1";

    form.age = birthdayToAge(form.birthday)

    return form;

}