javascript验证香港身份证

 var assert = require('assert');
 describe('test', function() {
     it('coc', function() {
         var testCard01 = checkHKIDcard("AB987654(2)");
         assert(testCard01, true);

         var testCard02 = checkHKIDcard("G123456(A)");
         assert.equal(testCard02, true);

         var testCard03 = checkHKIDcard("L555555(0)");
         assert.equal(testCard03, true);

         var testCard04 = checkHKIDcard("C123456(9)");
         assert.equal(testCard04, true);

         var testCard05 = checkHKIDcard("AY987654(A)");
         assert.equal(testCard05, false);

     });
 }) 

 function checkHKIDcard(str) {
     var reg = /^[A-Z]{1,2}[0-9]{6}\([0-9A]\)$/
     if(!str.match(reg)) return false;

     var temp = str.replace(/[\(\)]/g, '');

     var len = temp.length;
     var sum = (len === 9)
               ? 9 * (temp[0].charCodeAt() - 64) + 8 * (temp[1].charCodeAt() - 64)
               : 8 * (temp[0].charCodeAt() - 64);

     var arr = temp.split('').reverse().join('').substr(1, 6);
     var arrResult = [2, 3, 4, 5, 6, 7];

     for(var i = 0; i< arr.length; i++) {
         sum += Number(arr[i]) * arrResult[i];
     }

     var mod = sum % 11;
     var lastCode = temp[len -1];
     if(mod === 0 && Number(lastCode) === 0 ) return true;

     var checkCode = 11 - mod;
     if(checkCode === 10 && lastCode === 'A') return true;

     if(checkCode > 0 && checkCode < 10 && Number(lastCode) === checkCode) return true;
     return false;
 }