title: How to "join" elements in Vue with a separator?
body: <p>In Python, there is a simple way to chain elements with a separator which is only added between the "inner" elements:</p>
  
  <pre><code>&gt;&gt;&gt; print(" → ".join(['hello', 'world', 'bonjour']))
  hello → world → bonjour
  </code></pre>
  
  <p>I am wondering whether there is a simple way to do the same in Vue.js. I was thinking about using <code>&lt;v-for&gt;</code> for that, but I do not think I can influence the way the iteration is built:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>new Vue({
    el: "#app",
    data: {
      boxes: [1, 2, 3]
    },
  })</code></pre>
  <pre class="snippet-code-css lang-css prettyprint-override"><code>#app {
    display: flex;
  }
  
  .box {
    background-color: red;
    width: 60px;
    height: 30px;
    margin: 10px;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"&gt;&lt;/script&gt;
  &lt;div id="app"&gt;
    &lt;div v-for="box in boxes" class="box"&gt;hello&lt;/div&gt;
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p><strong>Is there a way to add a separator (→) between the first and second, and the second and third box?</strong></p>