vue 3 methods code example

Example 1: vue methods

<template>
  <div id="example">
    <button v-on:click="greet">Greet</button>
  </div>
</template>

<script>
export default {
  methods: {
    greet: function(event) {
      // `event` is the native DOM event
      alert(event.target.tagName);
    }
  }
};
</script>

Example 2: vue composition api

<template>
  <button @click="increment">
    Count is: {{ state.count }}, double is: {{ state.double }}
  </button>
</template>

<script>
import { reactive, computed } from 'vue'

export default {
  setup() {
    const state = reactive({
      count: 0,
      double: computed(() => state.count * 2)
    })

    function increment() {
      state.count++
    }

    return {
      state,
      increment
    }
  }
}
</script>

Example 3: fetch composition API in Vue3

# http requests using Fetcht api in Vue 3 explained (see videos below) 
https://www.youtube.com/watch?v=-Aoyja_BjZY
https://www.youtube.com/watch?v=LvOYCjpMQ10