Added support for lt and gt in isInt().

CHANGELOG.md

@@ -1,3 +1,7 @@
+#### HEAD
+- Added support for `lt` and `gt` into `isInt()`
+  ([#588](https://github.com/chriso/validator.js/pull/588))
+
 #### 6.1.0
 
 - Added support for greater or less than in `isFloat()`

README.md

@@ -82,7 +82,7 @@ Passing anything other than a string is an error.
 - **isISIN(str)** - check if the string is an [ISIN][ISIN] (stock/security identifier).
 - **isISO8601(str)** - check if the string is a valid [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date.
 - **isIn(str, values)** - check if the string is in a array of allowed values.
-- **isInt(str [, options])** - check if the string is an integer. `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 }`).
+- **isInt(str [, options])** - check if the string is an integer. `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).
 - **isJSON(str)** - check if the string is valid JSON (note: uses JSON.parse).
 - **isLength(str, options)** - check if the string's length falls in a range. `options` is an object which defaults to `{min:0, max: undefined}`. Note: this function takes into account surrogate pairs.
 - **isLowercase(str)** - check if the string is lowercase.

lib/isInt.js

@@ -22,10 +22,12 @@ function isInt(str, options) {
   // leading zeroes are allowed or not.
   var regex = options.hasOwnProperty('allow_leading_zeroes') && !options.allow_leading_zeroes ? int : intLeadingZeroes;
 
-  // Check min/max
+  // 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;
+  return regex.test(str) && minCheckPassed && maxCheckPassed && ltCheckPassed && gtCheckPassed;
 }
 module.exports = exports['default'];

src/lib/isInt.js

@@ -14,9 +14,11 @@ export default function isInt(str, options) {
     int : intLeadingZeroes
   );
 
-  // Check min/max
+  // Check min/max/lt/gt
   let minCheckPassed = (!options.hasOwnProperty('min') || str >= options.min);
   let maxCheckPassed = (!options.hasOwnProperty('max') || str <= options.max);
+  let ltCheckPassed = (!options.hasOwnProperty('lt') || str < options.lt);
+  let gtCheckPassed = (!options.hasOwnProperty('gt') || str > options.gt);
 
-  return regex.test(str) && minCheckPassed && maxCheckPassed;
+  return regex.test(str) && minCheckPassed && maxCheckPassed && ltCheckPassed && gtCheckPassed;
 }

test/validators.js

@@ -1183,6 +1183,26 @@ describe('Validators', function () {
         'a',
       ],
     });
+    test({
+      validator: 'isInt',
+      args: [{
+        gt: 10,
+        lt: 15,
+      }],
+      valid: [
+        '14',
+        '11',
+        '13',
+      ],
+      invalid: [
+        '10',
+        '15',
+        '17',
+        '3.2',
+        '33',
+        'a',
+      ],
+    });
   });
 
   it('should validate floats', function () {

validator.js

@@ -681,11 +681,13 @@
         // leading zeroes are allowed or not.
         var regex = options.hasOwnProperty('allow_leading_zeroes') && !options.allow_leading_zeroes ? int : intLeadingZeroes;
 
-        // Check min/max
+        // 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;
+        return regex.test(str) && minCheckPassed && maxCheckPassed && ltCheckPassed && gtCheckPassed;
       }
 
       var float = /^(?:[-+]?(?:[0-9]+))?(?:\.[0-9]*)?(?:[eE][\+\-]?(?:[0-9]+))?$/;