Vue.js Mixins vs Composition API

What are the main differences between Vue.js Mixins and the Composition API?

Vue.js Mixins allow you to reuse component logic by defining a mixin object, while the Composition API provides a more flexible way to organize and reuse logic using functions.

Can you give me an example of how to use Mixins?

Sure! You can create a mixin like this:

const myMixin = {
  data() {
    return { message: 'Hello from mixin!' };
  },
  created() {
    console.log('Mixin created!');
  }
};

Then, include it in your component:

export default {
  mixins: [myMixin],
};

What about the Composition API? How does it work?

The Composition API allows you to define reactive state and functions in a setup() function. For example:

import { ref } from 'vue';

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

Which one should I use for my new Vue project?

It depends on your project needs. If you prefer a more organized and scalable approach, the Composition API is recommended. However, if you're maintaining an older codebase, Mixins might still be useful.