本文實例講述了JS實現的檢驗身份證格式并輸出出生日期，年齡，性別，出生地。分享給大家供大家參考，具體如下：
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>檢驗身份證格式并輸出出生日期，年齡，性別，出生地</title></head><body><script> window.onload = function() { var txtVal = document.getElementById("txtVal"); var oBtn = document.getElementById("oBtn"); //兼容瀏覽器點擊事件 function myAddEvent(obj, ev, fn) { if(obj.attachEvent) { obj.attachEvent("on" + ev, fn); } else { obj.addEventListener(ev, fn, false); } }; //身份證地區 var areaID = { 11: "北京", 12: "天津", 13: "河北", 14: "山西", 15: "內蒙古", 21: "遼寧", 22: "吉林", 23: "黑龍江", 31: "上海", 32: "江蘇", 33: "浙江", 34: "安徽", 35: "福建", 36: "江西", 37: "山東", 41: "河南", 42: "湖北", 43: "湖南", 44: "廣東", 45: "廣西", 46: "海南", 50: "重慶", 51: "四川", 52: "貴州", 53: "云南", 54: "西藏", 61: "陜西", 62: "甘肅", 63: "青海", 64: "寧夏", 65: "新疆", 71: "臺灣", 81: "香港", 82: "澳門", 91: "國外" }; //性別 var sexMap = {0: "女", 1: "男"}; /********************************************* * 檢驗身份證格式是否正確 ********************************************/ var checkIdCard = function(IDCard) { var iSum = 0; var info = ""; if(!/^/d{17}(/d|x)$/i.test(IDCard)) return { status: false, message: '你輸入的身份證長度或格式錯誤!' }; IDCard = IDCard.replace(/x$/i, "a"); if(areaID[parseInt(IDCard.substr(0, 2))] == null) return { status: false, message: '你的身份證地區非法!' }; var sBirthday = IDCard.substr(6, 4) + "-" + Number(IDCard.substr(10, 2)) + "-" + Number(IDCard.substr(12, 2)); var d = new Date(sBirthday.replace(/-/g, "/")); if(sBirthday != (d.getFullYear() + "-" + (d.getMonth() + 1) + "-" + d.getDate())) return { status: false, message: '身份證上的出生日期非法!' }; for(var i = 17; i >= 0; i--) iSum += (Math.pow(2, i) % 11) * parseInt(IDCard.charAt(17 - i), 11); if(iSum % 11 != 1) return { status: false, message: '你輸入的身份證號非法!' }; //aCity[parseInt(sId.substr(0,2))]+","+sBirthday+","+(sId.substr(16,1)%2?"男":"女");//此次還可以判斷出輸入的身份證號的人性別 return { status: true, message: '校驗成功！' }; }; /********************************************* * 根據身份證號獲取性別 *********************************************/ var getSexByIdCard = function(idCard) { if(idCard.length == 15) { return sexMap[idCard.substring(14, 15) % 2]; } else if(idCard.length == 18) { return sexMap[idCard.substring(14, 17) % 2]; } else { //不是15或者18,null return ''; } }; /********************************************* * 根據身份證號獲取生日 *********************************************/ var getBirthdayByIdCard = function(idCard) { var birthStr; if(15 == idCard.length) { birthStr = idCard.charAt(6) + idCard.charAt(7); if(parseInt(birthStr) < 10) { birthStr = '20' + birthStr; } else { birthStr = '19' + birthStr; } birthStr = birthStr + '-' + idCard.charAt(8) + idCard.charAt(9) + '-' + idCard.charAt(10) + idCard.charAt(11); } else if(18 == idCard.length) { birthStr = idCard.charAt(6) + idCard.charAt(7) + idCard.charAt(8) + idCard.charAt(9) + '-' + idCard.charAt(10) + idCard.charAt(11) + '-' + idCard.charAt(12) + idCard.charAt(13); } return birthStr; }; /********************************************* * 根據身份證號獲取出生地 *********************************************/ var getAreaByIdCard = function(idCard) { return areaID[parseInt(idCard.substr(0, 2))]; }; /********************************************* * 根據身份證號獲取年齡 *********************************************/ var getAgeByIdCard = function(idCard) { var birthStr = getBirthdayByIdCard(idCard); var r = birthStr.match(/^(/d{1,4})(-|//)(/d{1,2})/2(/d{1,2})$/); if(r == null) return ''; var d = new Date(r[1], r[3] - 1, r[4]); if(d.getFullYear() == r[1] && (d.getMonth() + 1) == r[3] && d.getDate() == r[4]) { var Y = new Date().getFullYear(); return (Y - r[1]); } else { return ''; } }; //點擊獲取校驗結果 myAddEvent(oBtn, "click", function() { var card = txtVal.value if(checkIdCard(card).status) { //校驗是否成功 console.log(checkIdCard(card).message) //輸出性別 console.log(getSexByIdCard(card)) //輸出生日 console.log(getBirthdayByIdCard(card)) //輸出出生地 console.log(getAreaByIdCard(card)) //輸出年齡 console.log(getAgeByIdCard(card)) } else { console.log(checkIdCard(card).message) } }); }</script><input type="text" value="" id="txtVal"><input type="button" id="oBtn" value="獲取身份證信息"></body></html>
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