feat(isIdentityCard): add NL locale

README.md

@@ -120,7 +120,7 @@ Validator                               | Description
 **isHexColor(str)**                     | check if the string is a hexadecimal color.
 **isHSL(str)**                          | check if the string is an HSL (hue, saturation, lightness, optional alpha) color based on [CSS Colors Level 4 specification][CSS Colors Level 4 Specification].<br/><br/>Comma-separated format supported. Space-separated format supported with the exception of a few edge cases (ex: `hsl(200grad+.1%62%/1)`).
 **isIBAN(str, [, options])**                  | check if the string is an IBAN (International Bank Account Number).<br/><br/>`options` is an object which accepts two attributes: `whitelist`: where you can restrict IBAN codes you want to receive data from and `blacklist`: where you can remove some of the countries from the current list. For both you can use an array with the following values `['AD','AE','AL','AT','AZ','BA','BE','BG','BH','BR','BY','CH','CR','CY','CZ','DE','DK','DO','EE','EG','ES','FI','FO','FR','GB','GE','GI','GL','GR','GT','HR','HU','IE','IL','IQ','IR','IS','IT','JO','KW','KZ','LB','LC','LI','LT','LU','LV','MC','MD','ME','MK','MR','MT','MU','MZ','NL','NO','PK','PL','PS','PT','QA','RO','RS','SA','SC','SE','SI','SK','SM','SV','TL','TN','TR','UA','VA','VG','XK']`.
-**isIdentityCard(str [, locale])**      | check if the string is a valid identity card code.<br/><br/>`locale` is one of `['LK', 'PL', 'ES', 'FI', 'IN', 'IT', 'IR', 'MZ', 'NO', 'TH', 'zh-TW', 'he-IL', 'ar-LY', 'ar-TN', 'zh-CN', 'zh-HK', 'PK']` OR `'any'`. If 'any' is used, function will check if any of the locales match.<br/><br/>Defaults to 'any'.
+**isIdentityCard(str [, locale])**      | check if the string is a valid identity card code.<br/><br/>`locale` is one of `['LK', 'PL', 'ES', 'FI', 'IN', 'IT', 'IR', 'MZ', 'NL', 'NO', 'TH', 'zh-TW', 'he-IL', 'ar-LY', 'ar-TN', 'zh-CN', 'zh-HK', 'PK']` OR `'any'`. If 'any' is used, function will check if any of the locales match.<br/><br/>Defaults to 'any'.
 **isIMEI(str [, options]))**                         | check if the string is a valid [IMEI number][IMEI]. IMEI should be of format `###############` or `##-######-######-#`.<br/><br/>`options` is an object which can contain the keys `allow_hyphens`. Defaults to first format. If `allow_hyphens` is set to true, the validator will validate the second format.
 **isIn(str, values)**                   | check if the string is in an array of allowed values.
 **isInt(str [, options])**              | check if the string is an integer.<br/><br/>`options` is an object which can contain the keys `min` and/or `max` to check the integer is within boundaries (e.g. `{ min: 10, max: 99 }`). `options` can also contain the key `allow_leading_zeroes`, which when set to false will disallow integer values with leading zeroes (e.g. `{ allow_leading_zeroes: false }`). Finally, `options` can contain the keys `gt` and/or `lt` which will enforce integers being greater than or less than, respectively, the value provided (e.g. `{gt: 1, lt: 4}` for a number between 1 and 4).

src/lib/isIdentityCard.js

@@ -152,6 +152,23 @@ const validators = {
     if (str === 'CA00000AA') return false; // https://it.wikipedia.org/wiki/Carta_d%27identit%C3%A0_elettronica_italiana
     return str.search(/C[A-Z]\d{5}[A-Z]{2}/is) > -1;
   },
+  NL: (str) => {
+    if (!/^\d{8,9}$/.test(str)) return false;
+
+    str = `0${str}`.slice(-9);
+
+    let sum = 0;
+
+    for (let i = 0; i < 9; i++) {
+      if (i === 8) {
+        sum += str[i] * -1;
+      } else {
+        sum += str[i] * (9 - i);
+      }
+    }
+
+    return !(sum % 11);
+  },
   NO: (str) => {
     const sanitized = str.trim();
     if (isNaN(Number(sanitized))) return false;

test/validators.test.js

@@ -6021,6 +6021,38 @@ describe('Validators', () => {
           'C1236EC',
         ],
       },
+      {
+        locale: 'NL',
+        valid: [
+          '34074193',
+          '075755828',
+          '143065877',
+          '282553162',
+          '306255030',
+          '478764704',
+          '569449972',
+          '661758977',
+          '770949411',
+          '801459904',
+          '942614070',
+        ],
+        invalid: [
+          'abc',
+          '123',
+          '99999999999',
+          '12474588',
+          '062996534',
+          '100563191',
+          '245999283',
+          '375004177',
+          '452414405',
+          '591587198',
+          '638616545',
+          '773589513',
+          '807465789',
+          '930304232',
+        ],
+      },
       {
         locale: 'NO',
         valid: [