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Un-golf #changedAttributes

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Justin Ridgewell
2015-05-23 12:29:00 -04:00
parent f430fa0849
commit cd11702167
1 changed files with 5 additions and 4 deletions
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backbone.js
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@@ -539,13 +539,14 @@
// determining if there *would be* a change.
changedAttributes: function(diff) {
if (!diff) return this.hasChanged() ? _.clone(this.changed) : false;
var val, changed = false;
var old = this._changing ? this._previousAttributes : this.attributes;
var changed = {};
for (var attr in diff) {
if (_.isEqual(old[attr], (val = diff[attr]))) continue;
(changed || (changed = {}))[attr] = val;
var val = diff[attr];
if (_.isEqual(old[attr], val)) continue;
changed[attr] = val;
}
return changed;
return _.size(changed) ? changed : false;
},
// Get the previous value of an attribute, recorded at the time the last