<template>
  <h2>Example $props Object</h2>
  <p>
    Bag weight: <br> 
    <input type="range" v-model="weight" min="0" max="20"> {{ weight }} kg
  </p>
  <info-box v-bind:bag-weight=weight />
</template>

<script>
export default {
  data() {
    return {
      weight: 4
    }
  }
}
</script>                  

<template>
  <div>
    <h3>InfoBox.vue</h3>
    <p>The $props object is used in a computed value to create a message based on the weight of the bag:</p>
    <span>{{ this.bagWeightStatus }}</span>
  </div>
</template>

<script>
export default {
  props: [
    'bagWeight'
  ],
  computed: {
    bagWeightStatus() {
      if(this.$props.bagWeight>10) {
        return 'Puh, this bag is heavy!'
      }
      else {
        return 'This bag is not so heavy.'
      }
    }
  }
}
</script>

<style scoped>
div {
  border: solid black 1px;
  padding: 10px;
  max-width: 350px;
  margin-top: 20px;
}
span {
  background-color: lightgreen;
  padding: 5px 10px;
  font-weight: bold;
}
</style>                  

import { createApp } from 'vue'

import App from './App.vue'
import InfoBox from './components/InfoBox.vue'

const app = createApp(App)
app.component('info-box', InfoBox)
app.mount('#app')