isEven, isOdd, isNegative, isMaxValue, isMinValue, isInfinite, isPositive, isSingleValue.

tests/corelib/core_runtime_types_test.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * A test of simple runtime behavior on numbers, strings and lists with
  * a focus on both correct behavior and runtime errors.
  *
  * This file is written to use minimal type declarations to match a
  * typical dynamic language coding style.
@@ skipping 123 matching lines @@
     assertEquals(x.abs(), 10.6);
     assertEquals((-x).abs(), 10.6);
     assertEquals(x.round(), 11);
     assertEquals(x.floor(), 10);
     assertEquals(x.ceil(), 11);
   }
 
   // TODO(jimhug): Determine correct behavior for mixing ints and floats.
   static testIntegerMethods() {
     var y = 9;
-    assertEquals(y.isEven(), false);
-    assertEquals(y.isOdd(), true);
+    assertEquals(y.isEven, false);
+    assertEquals(y.isOdd, true);
     assertEquals(y.toRadixString(2), '1001');
     assertEquals(y.toRadixString(3), '100');
     assertEquals(y.toRadixString(16), '9');
     assertEquals((0).toRadixString(16), '0');
     try {
       y.toRadixString(0);
       Expect.fail("Illegal radix 0 accepted.");
     } catch (e) { }
     try {
       y.toRadixString(-1);
@@ skipping 125 matching lines @@
     '${true}'.toString();
     '${false}'.toString();
     ''.toString();
     ''.endsWith('');
   }
 }
 
 main() {
   CoreRuntimeTypesTest.testMain();
 }