isInt.js 1.1 KB

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  1. 'use strict';
  2. Object.defineProperty(exports, "__esModule", {
  3. value: true
  4. });
  5. exports.default = isInt;
  6. var _assertString = require('./util/assertString');
  7. var _assertString2 = _interopRequireDefault(_assertString);
  8. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  9. var int = /^(?:[-+]?(?:0|[1-9][0-9]*))$/;
  10. var intLeadingZeroes = /^[-+]?[0-9]+$/;
  11. function isInt(str, options) {
  12. (0, _assertString2.default)(str);
  13. options = options || {};
  14. // Get the regex to use for testing, based on whether
  15. // leading zeroes are allowed or not.
  16. var regex = options.hasOwnProperty('allow_leading_zeroes') && !options.allow_leading_zeroes ? int : intLeadingZeroes;
  17. // Check min/max/lt/gt
  18. var minCheckPassed = !options.hasOwnProperty('min') || str >= options.min;
  19. var maxCheckPassed = !options.hasOwnProperty('max') || str <= options.max;
  20. var ltCheckPassed = !options.hasOwnProperty('lt') || str < options.lt;
  21. var gtCheckPassed = !options.hasOwnProperty('gt') || str > options.gt;
  22. return regex.test(str) && minCheckPassed && maxCheckPassed && ltCheckPassed && gtCheckPassed;
  23. }
  24. module.exports = exports['default'];