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node_modules/validator/es/lib/isInt.js

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+import assertString from './util/assertString';
+var _int = /^(?:[-+]?(?:0|[1-9][0-9]*))$/;
+var intLeadingZeroes = /^[-+]?[0-9]+$/;
+export default function isInt(str, options) {
+  assertString(str);
+  options = options || {}; // Get the regex to use for testing, based on whether
+  // leading zeroes are allowed or not.
+
+  var regex = options.hasOwnProperty('allow_leading_zeroes') && !options.allow_leading_zeroes ? _int : intLeadingZeroes; // Check min/max/lt/gt
+
+  var minCheckPassed = !options.hasOwnProperty('min') || str >= options.min;
+  var maxCheckPassed = !options.hasOwnProperty('max') || str <= options.max;
+  var ltCheckPassed = !options.hasOwnProperty('lt') || str < options.lt;
+  var gtCheckPassed = !options.hasOwnProperty('gt') || str > options.gt;
+  return regex.test(str) && minCheckPassed && maxCheckPassed && ltCheckPassed && gtCheckPassed;
+}