title: how to print numberlong value?
body: <p>So, I tried to print a NumberLong to console from a mongoshell.
  However, when I casted the NumberLong variable into string, the value got rounded down. After initial search, it looks like it happens because the precision limit of javascript float.
  Here is one example in mongoshell:</p>
  
  <pre><code>var abc = NumberLong(2517720935641120769);
  print(abc);
  </code></pre>
  
  <p>The output is</p>
  
  <pre><code>NumberLong("2517720935641120769")
  </code></pre>
  
  <p>However, when I tried to cast it into string to just print the value</p>
  
  <pre><code>print(''+abc);
  </code></pre>
  
  <p>The output is</p>
  
  <pre><code>2517720935641121000
  </code></pre>
  
  <p>Is there any trick to print the value inside NumberLong?</p>