Angular Signals: The Hidden Cost of Reference Changes

The article explains that Angular Signals rely on reference changes of objects to trigger updates. When using primitive values, this is efficient because changes are detected by value. However, for complex data like objects or arrays, Angular only detects changes if the reference itself changes, not the internal data. This means mutating an object or array without changing its reference will not trigger updates, potentially leaving the UI out of sync. To ensure reliable updates, immutable patterns should be used where data is replaced with new references.  - https://angular.love/angular-signals-the-hidden-cost-of-reference-changes

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