From: Christopher Brown <io@henrian.com>
Date: Fri, 31 May 2013 21:21:55 +0000 (-0500)
Subject: Add duration.add() and duration.subtract() methods.
X-Git-Tag: 2.1.0~21^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e9e6c4201768446406984613ca19d39c376007fc;p=thirdparty%2Fmoment.git

Add duration.add() and duration.subtract() methods.
---

diff --git a/moment.js b/moment.js
index 257995255..5247ab5a6 100644
--- a/moment.js
+++ b/moment.js
@@ -1504,6 +1504,27 @@
             return this.lang().postformat(output);
         },
 
+        add : function (input, val) {
+            // supports only 2.0-style add(1, 's') or add(moment)
+            var dur = moment.duration(input, val);
+
+            this._milliseconds += dur._milliseconds;
+            this._days += dur._days;
+            this._months += dur._months;
+
+            return this;
+        },
+
+        subtract : function (input, val) {
+            var dur = moment.duration(input, val);
+
+            this._milliseconds -= dur._milliseconds;
+            this._days -= dur._days;
+            this._months -= dur._months;
+
+            return this;
+        },
+
         get : function (units) {
             units = normalizeUnits(units);
             return this[units.toLowerCase() + 's']();