validator/lib/isInt.js

String validation and sanitization

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = isInt;
var _assertString = _interopRequireDefault(require("./util/assertString"));
var _nullUndefinedCheck = _interopRequireDefault(require("./util/nullUndefinedCheck"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
var int = /^(?:[-+]?(?:0|[1-9][0-9]*))$/;
var intLeadingZeroes = /^[-+]?[0-9]+$/;
function isInt(str, options) {
  (0, _assertString.default)(str);
  options = options || {};

  // Get the regex to use for testing, based on whether
  // leading zeroes are allowed or not.
  var regex = options.allow_leading_zeroes === false ? int : intLeadingZeroes;

  // Check min/max/lt/gt
  var minCheckPassed = !options.hasOwnProperty('min') || (0, _nullUndefinedCheck.default)(options.min) || str >= options.min;
  var maxCheckPassed = !options.hasOwnProperty('max') || (0, _nullUndefinedCheck.default)(options.max) || str <= options.max;
  var ltCheckPassed = !options.hasOwnProperty('lt') || (0, _nullUndefinedCheck.default)(options.lt) || str < options.lt;
  var gtCheckPassed = !options.hasOwnProperty('gt') || (0, _nullUndefinedCheck.default)(options.gt) || str > options.gt;
  return regex.test(str) && minCheckPassed && maxCheckPassed && ltCheckPassed && gtCheckPassed;
}
module.exports = exports.default;
module.exports.default = exports.default;