title: did prototype create a variable without using var?
body: <pre><code>Blog.prototype.signature = "TEXT"
  </code></pre>
  
  <p>did this statement here created a signature variable?</p>
  
  <p>because this statement didnt have <strong>var keyword</strong> in it.<br /><br /></p>
  
  <p><strong>Also additional question</strong></p>
  
  <p>why need to use function literals or function reference to make a function inside the prototype of an object?</p>
  
  <p>ex. this wont work....</p>
  
  <pre><code>obj.prototype.toString{
  
      return "dfasdfa";
  
  }
  </code></pre>