Don't export the isISO8601 regular expression

Now you can use the following, like other validators:

  const isISO8601 = require('validator/lib/isISO8601');

This fixes #688

CHANGELOG.md

@@ -1,5 +1,7 @@
 #### HEAD
 
+- Fix `require('validator/lib/isIS8601')` calls
+  ([#688](https://github.com/chriso/validator.js/issues/688))
 - Allow comma in email display names
   ([#692](https://github.com/chriso/validator.js/pull/692))
 - Add missing string to unescape

lib/isISO8601.js

@@ -3,12 +3,7 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.iso8601 = undefined;
-
-exports.default = function (str) {
-  (0, _assertString2.default)(str);
-  return iso8601.test(str);
-};
+exports.default = isISO8601;
 
 var _assertString = require('./util/assertString');
 
@@ -18,5 +13,11 @@ function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { de
 
 /* eslint-disable max-len */
 // from http://goo.gl/0ejHHW
-var iso8601 = exports.iso8601 = /^([\+-]?\d{4}(?!\d{2}\b))((-?)((0[1-9]|1[0-2])(\3([12]\d|0[1-9]|3[01]))?|W([0-4]\d|5[0-2])(-?[1-7])?|(00[1-9]|0[1-9]\d|[12]\d{2}|3([0-5]\d|6[1-6])))([T\s]((([01]\d|2[0-3])((:?)[0-5]\d)?|24:?00)([\.,]\d+(?!:))?)?(\17[0-5]\d([\.,]\d+)?)?([zZ]|([\+-])([01]\d|2[0-3]):?([0-5]\d)?)?)?)?$/;
-/* eslint-enable max-len */
+var iso8601 = /^([\+-]?\d{4}(?!\d{2}\b))((-?)((0[1-9]|1[0-2])(\3([12]\d|0[1-9]|3[01]))?|W([0-4]\d|5[0-2])(-?[1-7])?|(00[1-9]|0[1-9]\d|[12]\d{2}|3([0-5]\d|6[1-6])))([T\s]((([01]\d|2[0-3])((:?)[0-5]\d)?|24:?00)([\.,]\d+(?!:))?)?(\17[0-5]\d([\.,]\d+)?)?([zZ]|([\+-])([01]\d|2[0-3]):?([0-5]\d)?)?)?)?$/;
+/* eslint-enable max-len */
+
+function isISO8601(str) {
+  (0, _assertString2.default)(str);
+  return iso8601.test(str);
+}
+module.exports = exports['default'];

src/lib/isISO8601.js

@@ -2,10 +2,10 @@ import assertString from './util/assertString';
 
 /* eslint-disable max-len */
 // from http://goo.gl/0ejHHW
-export const iso8601 = /^([\+-]?\d{4}(?!\d{2}\b))((-?)((0[1-9]|1[0-2])(\3([12]\d|0[1-9]|3[01]))?|W([0-4]\d|5[0-2])(-?[1-7])?|(00[1-9]|0[1-9]\d|[12]\d{2}|3([0-5]\d|6[1-6])))([T\s]((([01]\d|2[0-3])((:?)[0-5]\d)?|24:?00)([\.,]\d+(?!:))?)?(\17[0-5]\d([\.,]\d+)?)?([zZ]|([\+-])([01]\d|2[0-3]):?([0-5]\d)?)?)?)?$/;
+const iso8601 = /^([\+-]?\d{4}(?!\d{2}\b))((-?)((0[1-9]|1[0-2])(\3([12]\d|0[1-9]|3[01]))?|W([0-4]\d|5[0-2])(-?[1-7])?|(00[1-9]|0[1-9]\d|[12]\d{2}|3([0-5]\d|6[1-6])))([T\s]((([01]\d|2[0-3])((:?)[0-5]\d)?|24:?00)([\.,]\d+(?!:))?)?(\17[0-5]\d([\.,]\d+)?)?([zZ]|([\+-])([01]\d|2[0-3]):?([0-5]\d)?)?)?)?$/;
 /* eslint-enable max-len */
 
-export default function (str) {
+export default function isISO8601(str) {
   assertString(str);
   return iso8601.test(str);
 }

validator.js

@@ -1035,10 +1035,10 @@ function isCurrency(str, options) {
 var iso8601 = /^([\+-]?\d{4}(?!\d{2}\b))((-?)((0[1-9]|1[0-2])(\3([12]\d|0[1-9]|3[01]))?|W([0-4]\d|5[0-2])(-?[1-7])?|(00[1-9]|0[1-9]\d|[12]\d{2}|3([0-5]\d|6[1-6])))([T\s]((([01]\d|2[0-3])((:?)[0-5]\d)?|24:?00)([\.,]\d+(?!:))?)?(\17[0-5]\d([\.,]\d+)?)?([zZ]|([\+-])([01]\d|2[0-3]):?([0-5]\d)?)?)?)?$/;
 /* eslint-enable max-len */
 
-var isISO8601 = function (str) {
+function isISO8601(str) {
   assertString(str);
   return iso8601.test(str);
-};
+}
 
 var notBase64 = /[^A-Z0-9+\/=]/i;