What is the Vue instance and how do you create one?

beginner

Re-explain

A Vue instance is the root of every Vue application. It's created using the createApp() function and contains the application's data, methods, and configuration.

import { createApp } from 'vue'
const app = createApp({
  data() {
    return {
      message: 'Hello Vue!'
    }
  },
  methods: {
    greet() {
      alert(this.message)
    }
  }
})
app.mount('#app')

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