title: table.getn is deprecated - How can I get the length of an array?
body: <p>I'm trying to get the length of an array in Lua with <code>table.getn</code>. I receive this error:</p>
  
  <blockquote>
    <p>The function table.getn is deprecated!</p>
  </blockquote>
  
  <p>(In Transformice Lua)</p>