How to use watchers in Vue

Watchers in Vue provide a way to perform side effects in response to data changes, enabling reactive programming patterns for API calls, validation, and complex state management. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented watchers in numerous Vue components for form validation, search functionality, and real-time data synchronization in enterprise applications. From my expertise, the most effective approach is to use the watch option with proper configuration for deep watching and immediate execution. This method provides precise control over reactive behavior while maintaining clean separation between data and side effects.

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How to use computed properties in Vue

Creating efficient reactive calculations and data transformations is crucial for building performant Vue applications with complex business logic and dynamic user interfaces. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented computed properties in numerous Vue components for filtering data, formatting displays, and calculating derived values in dashboards. From my expertise, the most powerful approach is to use computed properties which provide automatic caching and dependency tracking. This method ensures calculations only run when their dependencies change, optimizing performance compared to methods or watchers.

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Answers by CoreUI Core Team