Difference between Template-Driven and Reactive Forms (in-depth).

Quick Answer Template-Driven: uses [(ngModel)], directives in template, async validation tricky, unit testing harder (needs DOM). Reactive: FormGroup/FormControl in TypeScript, synchronous and async validators as functions, dynamic form building with FormArray, fully testable without DOM. For complex forms with conditional fields, dynamic validation rules, or testing requirements, Reactive is always the right choice.

Answer

Template-Driven Forms: Defined mostly in HTML, suitable for simple forms, limited dynamic capability.

Reactive Forms: Structured entirely in TypeScript, scalable, predictable, supports dynamic fields, custom validators, and is ideal for enterprise-level applications.

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Difference between Template-Driven and Reactive Forms (in-depth).

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