title: Why VueJS is autoreloading after a push array?
body: <p>When i push a value in my array with VueJS, chrome display it but just after my web page is reloading. </p>
  
  <pre><code>let vm = new Vue ({
      el:'#app2',
  
      data: {
          people: ['Robert', 'Pablo', 'Lucas', 'Teban']
      },
  
      methods: {
          addPerson: function() {
              this.people.push('Maxime')   
          },
      }
  })
  
      &lt;section id="app2" style="margin-top: 100px"&gt;
          &lt;p&gt;{{people}}&lt;/p&gt;
          &lt;form&gt;
              &lt;button v-on:click='addPerson'&gt;Ajouter une personne&lt;/button&gt;
          &lt;/form&gt;
      &lt;/section&gt;
  </code></pre>