previousmodel.previous(attribute)
During a "change" event, this method can be used to get the previous value of a changed attribute.
1 2 3 4 5 6 7 8 9 | var bill = new Backbone.Model({ name: "Bill Smith"});bill.on("change:name", function(model, name) { alert("Changed name from " + bill.previous("name") + " to " + name);});bill.set({name : "Bill Jones"}); |
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