Generate random number within range without repeating numbers in javascript
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/2380019/generate-8-unique-random-numbers-between-1-and-100">Generate 8 unique random numbers between 1 and 100</a><br>
  <a href="http://stackoverflow.com/questions/11808804/generate-unique-number-within-range-0-x-keeping-a-history-to-prevent-duplic">Generate unique number within range (0 - X), keeping a history to prevent duplicates</a>  </p>
</blockquote>



<p>I need loop that will run 80 times and generate random number between 0-79 but it will not repeat number that has been generated already.<br>
How can I do that?</p>
