Single Page Applications (SPA) Architecture

 Single Page Applications (SPA) Architecture: Single page applications are web applications that load a single HTML page and dynamically update the content using JavaScript. SPAs typically use a client-side JavaScript framework and communicate with a server-side API to retrieve and update data. Here is an example of an SPA using Vue.js:

php

// App.vue

<template>

  <div>

    <h1>{{ message }}</h1>

    <ul>

      <li v-for="item in items" :key="item.id">{{ item.name }}</li>

    </ul>

  </div>

</template>

<script>

export default {

  data() {

    return {

      message: 'Hello World!',

      items: [],

    };

  },

  mounted() {

    fetch('/api/items')

      .then(response => response.json())

      .then(data => {

        this.items = data;

      });

  },

};

</script>

In this code, we create a Vue.js component that displays a message and a list of items retrieved from a server-side API.