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Computed and Watched Values

Explore how to create and use computed properties for dynamic data updates and watchers to react to changes in reactive variables. This lesson teaches you to implement efficient state management and asynchronous operations using Vue 3's Composition API, enhancing your ability to handle complex application behavior.

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Computed values

Creating computed propertiesComputed properties in Vue are functions that automatically recalculate and update their values based on their dependent data, offering efficient and dynamic data manipulation. is pretty straightforward with the CompositionAPI. We can create computed properties using the computed function.

Syntax

Here’s the syntax for creating a computed property in Composition API:

Javascript (babel-node-es2024)
import { computed } from 'vue';
// Inside the setup() function of the component
const myComputedProperty = computed(() => {
  // Computed property logic
  return computedValue;
});

We just need to replace myComputedProperty with the name, we want to give to our computed property and add the logic inside the arrow function according to our requirements. ...