Angular 17 recently introduced the concept of Signals to improve reactivity and simplify state management. Signals allow Angular applications to handle state changes in a more predictable, efficient, and declarative way. This blog will cover what Signals are, why they matter, and how to use them with practical examples.
What are Signals?
In Angular, a Signal is a reactive primitive that provides a new approach to managing and responding to state changes. With Signals, you can track changes to specific data points (variables or objects), allowing the app to automatically react when the data changes without needing complex change detection.
Why Use Signals?
Signals offer several benefits:
- Predictable reactivity: Signals enable precise control over when a component updates, leading to more predictable behavior.
- Improved performance: With Signals, Angular avoids unnecessary re-renders by updating only the affected parts.
