How to use mixins in Vue.js

In Vue.js, mixins are a way to reuse and share code among components. They allow you to encapsulate and distribute reusable functionalities in a modular way. Here's a step-by-step guide on how to use mixins in Vue.js, along with additional resource links:

Step 1: Create a Mixin

Create a new JavaScript file for your mixin. For example, let's call it myMixin.js:

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// myMixin.js
export const myMixin = {
  data() {
    return {
      mixinData: 'Hello from the mixin!',
    };
  },
  methods: {
    sayHello() {
      console.log('Mixin says hello!');
    },
  },
};

Step 2: Use the Mixin in a Component

In your Vue component, import the mixin and use it by adding it to the mixins option:

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// MyComponent.vue
<template>
  <div>
    <p>{{ mixinData }}</p>
    <button @click="sayHello">Say Hello</button>
  </div>
</template>

<script>
import { myMixin } from './myMixin.js';

export default {
  mixins: [myMixin],
  // other component options...
};
</script>

Step 3: Use the Component

Now, you can use MyComponent in your application, and it will have access to the data and methods defined in the mixin.

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// App.vue
<template>
  <div id="app">
    <my-component></my-component>
  </div>
</template>

<script>
import MyComponent from './MyComponent.vue';

export default {
  components: {
    MyComponent,
  },
};
</script>