Backbone.js ↔ Underscore.js: Deep Comparison Compatibility in Model#set
Backbone.js ↔ Underscore.js: Deep Comparison Compatibility in Model#set Backbone’s Model#set relies on Underscore’s _.isEqual to detect attribute changes. The 1.9 release of Underscore introduced stricter deep‑comparison semantics, causing Backbone to flag a change when only a nested property is modified, even if the top‑level reference remains the same. Thi