title: Simple subtraction bug in Javascript
body: <p>I was shocked to see such a basic subtraction bug in JS, I am sure most of you here would have experienced this issue, please help me with a work around here, 
  All I am doing is subtracting a number from 100 which gives unexpected results, an example is stated below</p>
  
  <pre><code>100 - 99.1
  // returns 0.9000000000000057
  </code></pre>
  
  <p>Am I doing something wrong here ? :S I am confused</p>