What is the Composition API in Vue 3 with TypeScript?

Can you explain the Composition API in Vue 3 and how to use it with TypeScript?

The Composition API is a new way to organize and reuse logic in Vue 3. It allows you to use functions to encapsulate state and behavior, making your components more flexible. When using TypeScript, you can define types for your reactive state and props, enhancing type safety.

How do I create a reactive state using the Composition API?

You can create a reactive state using the ref or reactive functions. For example, const count = ref(0); creates a reactive reference to a number.

Can you show me a simple example of a component using the Composition API?

Sure! Here's a simple example:

import { defineComponent, ref } from 'vue';

export default defineComponent({
  setup() {
    const count = ref(0);
    const increment = () => count.value++;
    return { count, increment };
  }
});

What are the benefits of using the Composition API over the Options API?

The Composition API offers better code organization, improved reusability of logic, and enhanced TypeScript support, making it easier to manage complex components.