Prototype: Add Number.prototype.round as an alias to Math.round(). [Thomas Fuchs]

CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* Add Number.prototype.round as an alias to Math.round().  [Thomas Fuchs]
+
 * Test library fixes: make rake dist work on Windows, only teardown if a browser is supported.  Closes #8463, #8498.  [Mislav Marohnić, grant]
 
 * Change Element.insert syntax to allow multiple positions.  [Thomas Fuchs]

src/base.js

@@ -114,6 +114,10 @@ Object.extend(Function.prototype, {
 Function.prototype.defer = Function.prototype.delay.curry(0.01);
 
 Object.extend(Number.prototype, {
+  round: function() {
+    return Math.round(this);
+  },
+  
   toColorPart: function() {
     return this.toPaddedString(2, 16);
   },

test/unit/base.html

@@ -218,6 +218,13 @@
       }
     },
     
+    testNumberRound: function() {with(this) {
+      assertEqual(1, (0.9).round());
+      assertEqual(-2, (-1.9).round());
+      
+      assertEqual(Math.round(Math.PI), Math.PI.round());
+    }},
+    
     testNumberToColorPart: function() {with(this) {
       assertEqual('00', (0).toColorPart());
       assertEqual('0a', (10).toColorPart());