More number exts.

lib/number.js

@@ -8,4 +8,54 @@
 /**
  * Module dependencies.
  */
-var mill = require('mill');
+var mill = require('mill');
+
+/**
+ * Converts number to integer.
+ * 
+ * @returns {Number}
+ * @api public
+ */
+Number.prototype.toInt = function() {
+  return parseInt(this);
+};
+
+/**
+ * Returns the absolute value of a specified number.
+ * 
+ * @returns {Number}
+ * @api public
+ */
+Number.prototype.abs = function() {
+  return Math.abs(this);
+};
+
+/**
+ * Rounds a number to the nearest integer.
+ * 
+ * @returns {Number}
+ * @api public
+ */
+Number.prototype.round = function() {
+  return Math.round(this);
+};
+
+/**
+ * Rounds a number UPWARDS to the nearest integer.
+ * 
+ * @returns {Number}
+ * @api public
+ */
+Number.prototype.ceil = function() {
+  return Math.ceil(this);
+};
+
+/**
+ * Rounds a number DOWNWARDS to the nearest integer.
+ * 
+ * @returns {Number}
+ * @api public
+ */
+Number.prototype.floor = function() {
+  return Math.floor(this);
+};

test/number.test.js

@@ -18,4 +18,34 @@ describe('Number', function() {
       (1)[method].should.be.ok;
     });
   });
+
+  describe('.toInt()', function() {
+    it('should convert number to integer', function() {
+      (5.5).toInt().should.eql(5);
+    });
+  });
+
+  describe('.abs()', function() {
+    it('should return the abs value of a number', function() {
+      (-1).abs().should.eql(1);
+    });
+  });
+
+  describe('.round()', function() {
+    it('should rounds a number to the nearest integer', function() {
+      (2.6).round().should.eql(3);
+    });
+  });
+
+  describe('.ceil()', function() {
+    it('should rounds a number to the nearest integer', function() {
+      (2.2).ceil().should.eql(3);
+    });
+  });
+
+  describe('.floor()', function() {
+    it('should rounds a number to the nearest integer', function() {
+      (2.2).floor().should.eql(2);
+    });
+  });
 });