Welcome back to our Vue.js 3 series! In the previous article, we introduced the top 10 productivity tips for Vue 3. In this follow-up article, we'll dive deeper into some additional tips and best practices for Vue 3 development. As you may know, Vue 3 is a powerful JavaScript framework for building dynamic and responsive user interfaces. To optimize your Vue 3 development workflow and build high-quality applications, it's essential to follow these best practices and tips. Let's dive in!

Use v-model with custom components

In Vue 3, v-model can now be used with custom components, allowing developers to create reusable components that can be easily controlled by the parent component. To use v-model with custom components, the component must accept a modelValue prop and emit an update:modelValue event. Here's an example of a custom input component:

<template>
  <input :value="modelValue" @input="$emit('update:modelValue', $event.target.value)">
</template>

<script>
export default {
  props: {
    modelValue: {
      type: String,
      default: ''
    }
  }
}
</script>

Use the provide() and inject() functions

The provide() and inject() functions allow developers to share data and functions between components without the need for props or events. By using provide() and inject(), developers can create a global state or function that can be accessed by any component.

// in parent component
import { provide } from 'vue';
provide('message', 'Hello World!');

// in child component
import { inject } from 'vue';
export default {
  setup() {
    const message = inject('message');
    return {
      message
    };
  }
};

Use the defineComponent() function

The defineComponent() function is a shortcut in Vue 3 that allows developers to define a component with a single object instead of the traditional options API. By using defineComponent(), developers can write cleaner and more concise code.

import { defineComponent } from 'vue';

export default defineComponent({
  data() {
    return {
      count: 0
    };
  },
  methods: {
    increment() {
      this.count++;
    }
  }
});

Use the Suspense component

The Suspense component is a new addition to Vue 3 that allows developers to handle asynchronous components and loading states. By using Suspense, developers can show a loading spinner or placeholder while a component is being loaded.

<template>
  <Suspense>
    <template #default>
      <MyAsyncComponent />
    </template>
    <template #fallback>
      <div>Loading...</div>
    </template>
  </Suspense>
</template>

Use the Teleport component

The Teleport component is another new addition to Vue 3 that allows developers to render content outside of the current component and into a different part of the DOM. By using Teleport, developers can render components in different parts of the DOM without the need for additional HTML elements.

<template>
  <button @click="showModal = true">Open Modal</button>
  <Teleport to="#modal">
    <div v-if="showModal" class="modal">
      <h2>Modal Title</h2>
      <p>Modal Content</p>
      <button @click="showModal = false">Close Modal</button>
    </div>
  </Teleport>
</template>

Thanks for reading through! We hope you found these additional tips helpful for your development workflow. By following these tips, you can optimize your Vue 3 application's performance and efficiency, making it easier to build high-quality applications. We always strive to provide you with valuable content that can help you improve your skills and stay up-to-date with the latest trends in web development. If you have any questions or feedback, feel free to leave us a comment. Looking forward to bringing you more informative articles in the future.