Vue 3 Money Conversion App Composition API

Vue 3 Money Conversion App Composition API

The composition API is a new and optional way of creating and organizing components in VueJS 3. It is based on the functional programming principle called composition. In this tutorial, we will use it to create a basic money conversion app.

The composition API is a new and optional way of creating and organizing components in VueJS 3. It is based on the functional programming principle called composition. In this tutorial, we will use it to create a basic money conversion app.

Setting up Vue Project with the Composition API

Setting up a VueJS 3 project is not hard at all, but since the 3rd version of the framework is not out yet, then we will be actually using VueJS 2 with a composition-API plugin. The plugin will provide us with the features that we will need.

First, we can set up a standard VueJS application using VueJS CLI, then we will install the composition-api plugin:

$> vue create vue-3-money-converter

And we can just go with the default configuration. Furthermore, we will install the plugin:

$> npm i -S @vue/composition-api

Finally, we will add it to Vue:

main.js

import Vue from 'vue'

import App from './App.vue'

import VueCompositionApi from '@vue/composition-api'

​

Vue.config.productionTip = false

​

Vue.use(VueCompositionApi)

​

new Vue({

  render: h => h(App)

}).$mount('#app')

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