title: get values from contents of an object
body: <p>I have this library <a href="https://github.com/goldfire/howler.js" rel="nofollow">howler.min.js</a> and I'm using it to split an mp3 in 4 parts.
  This is my code where I create the variable of the sound:</p>
  
  <pre><code>var sound = new Howl({
    urls: ['singasong.mp3'],
  
    sprite: { //function
      w0: [360, 290], //[begining,duration in milliseconds]
      w1: [650, 450],
      w2: [1110, 280],
      w3: [1270, 330],
      w4: [1600, 210]
    }
  });
  </code></pre>
  
  <p>I want to get the second value inside the brackets (290,450,280,330,210) and obtain an array.
  I've tryed with this two methods: </p>
  
  <pre><code>a = $.makeArray(sound.sprite.arguments); // One way to do it
  a = sound.sprite.arguments.toArray();  // The other way
  </code></pre>
  
  <p>but it didn't work.</p>
  
  <p>Can anyone help me? Thanks in advance!</p>