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factor away else branch

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Brad Dunbar
2012-01-30 13:28:34 -05:00
parent 4b4f2c1ad6
commit ef9d40aa82
1 changed files with 5 additions and 6 deletions
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backbone.js
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@@ -395,17 +395,16 @@
// You can also pass an attributes object to diff against the model,
// determining if there *would be* a change.
changedAttributes: function(diff) {
var changed = false, old = this._previousAttributes;
if (diff) {
var val, changed = false, old = this._previousAttributes;
for (var attr in diff) {
if (_.isEqual(old[attr], diff[attr])) continue;
(changed || (changed = {}))[attr] = diff[attr];
if (_.isEqual(old[attr], (val = diff[attr]))) continue;
(changed || (changed = {}))[attr] = val;
}
return changed;
} else {
if (!this.hasChanged()) return false;
return _.clone(this._changed);
}
if (!this.hasChanged()) return false;
return _.clone(this._changed);
},
// Get the previous value of an attribute, recorded at the time the last