computed property in Vue?A computed property is a reactive value that Vue caches and updates only when its dependencies change. It is used to calculate values based on reactive data and is efficient because it avoids unnecessary recalculations.
watch in Vue used for?A watch is used to perform side effects or run code in response to changes in reactive data. It is useful for asynchronous operations or when you want to react to data changes without directly computing a value.
computed over watch?Choose computed when you want to derive a value from reactive data that updates automatically and is cached for performance. It is best for simple, synchronous calculations.
watch the better choice than computed?Use watch when you need to perform side effects like API calls, logging, or asynchronous tasks triggered by data changes. It is also useful when you want to react to changes without returning a value.
computed properties compared to methods?Vue caches computed properties and only recalculates them when their dependencies change. Methods run every time they are called, so computed is more efficient for derived data.
computed properties cache their results and update only when dependencies change, improving performance.
watch is designed to react to data changes and run side effects like async calls.
computed is ideal for deriving values reactively and efficiently.
methods run fresh every time they are called, unlike computed properties.
watch in Vue?watch is often used to trigger side effects like API calls when reactive data changes.
watch and computed in Vue and when to use each.watch is better than computed in a Vue app.