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Library/Frontend/Vue.js
Medium Pro#vuejs

Phân biệt computed, watch và watchEffect trong Vue 3: Khi nào nên dùng?

February 15, 2026

Quick summary

`computed` is used to create cached derived state; `watch` is for side-effects that require old/new values or specific tracking; `watchEffect` is for side-effects that automatically track all dependencies immediately upon initialization.

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Sample answer:

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam.

Quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore.

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