Two-way data binding is fundamental for creating reactive forms and synchronized user interfaces in Angular applications where data flows both from component to template and back. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented two-way data binding in countless Angular form components, input controls, and interactive elements for enterprise applications. From my expertise, the most powerful approach is to use ngModel directive with the banana-in-a-box syntax. This method provides automatic synchronization between component properties and form inputs, eliminating the need for manual event handling in most scenarios.