title: Java script convert number to string base two
body: <p>I am doing a test and the task is to write a function that takes an integer as input, and returns the number of bits that are equal to one in the binary representation of that number. You can guarantee that input is non-negative.</p>
  <p>So i have the following problem : while my code runs ok for the most part and passes all tests when the inputs are 9843520790 and 8989787640 I am getting wrong results. So I hoped in the calc and made this numbers binary and tried couple of console.log(bNum) and what I noticed is that I loose the high byte during the conversion. Meaning that after bNum=(n&gt;&gt;&gt;0).toString(2); the console.log(bNum) returns 11001001100011110010110101110011 for 7676570995 when it should return 111001001100011110010110101110011.</p>
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code> var countBits = function(n) {
    let bNum=(n&gt;&gt;&gt;0).toString(2);//converts int to base 2 
    console.log(bNum);
    let sum=0;
    for(let i=0;i&lt;=bNum.length-1;i++)
      {
         if(bNum[i]==1)
           sum+=1;
      }
    return sum;
  };</code></pre>
  </div>
  </div>
  </p>
  <p>I am not asking for a coding solution just someone to explain why this is happening so I can find a wayto fix it.Thanks in advance :)</p>