operador_spread.html

<!DOCTYPE html>
<html>
  <head>
    <title></title>

    <script src="https://unpkg.com/babel-standalone@6/babel.min.js"></script>

    <script type="text/babel">
      
      let filmes = ['Star Wars', 'The Lord of the Rings', 'Harry Potter']
      let series = ['Tow and Half Men', 'How I Met Your Mother']
      let animes = ['Naruto', 'Dragon Ball', 'Pokémon']

      //let todos = [filmes, series, animes]
      //let todos = ['Naruto', filmes, 'Dragon Ball', series, 'Pokémon']
      let todos = [...animes, ...filmes, ...series]

      console.log(todos)

    </script>
    
  </head>
  <body>
    <div id="output"></div>
  </body>
</html>