title: What is $t in Vue.js
body: <p>First time ever working with <code>Vue.js</code> and have no clue what is <code>$t</code>. For instance I have someone's code like this: </p>
  
  <pre><code> &lt;li class="category-filter__back"&gt;
     &lt;button
       class="category-filter__button"
       @click="back(categoryPath)"&gt;
       {{ $t(backButtonText) }} &lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt; what is this $t?
     &lt;/button&gt;
   &lt;/li&gt;
  </code></pre>
  
  <p>Can't seem to find any concrete answer for this. </p>