根据身份证号获取年龄

最新推荐文章于 2025-12-02 21:41:05 发布

原创最新推荐文章于 2025-12-02 21:41:05 发布 · 169 阅读

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#javascript

export function analyzeIDCard(IDCard) {
  let age = 0
  let yearBirth
  let monthBirth
  let dayBirth
  if (!IDCard) {
    return age
  }
  var reg = /(^\d{15}$)|(^\d{17}([0-9]|X)$)/ // 验证身份证号码的正则
  if (reg.test(IDCard)) {
    if (IDCard.length === 15) {
      var org_birthday = IDCard.substring(6, 12)
      // 获取出生年月日
      yearBirth = '19' + org_birthday.substring(0, 2)
      monthBirth = org_birthday.substring(2, 4)
      dayBirth = org_birthday.substring(4, 6)
    } else if (IDCard.length === 18) {
      // 获取出生年月日
      yearBirth = IDCard.substring(6, 10)
      monthBirth = IDCard.substring(10, 12)
      dayBirth = IDCard.substring(12, 14)
    }
    // 获取当前年月日并计算年龄
    var myDate = new Date()
    var monthNow = myDate.getMonth() + 1
    var dayNow = myDate.getDate()
    age = myDate.getFullYear() - yearBirth
    if (monthNow < monthBirth || (monthNow === monthBirth && dayNow < dayBirth)) {
      age--
    }
    // 返回年龄
    return age
  } else {
    return ''
  }
}