JSFiddle - React, Tailwind, and code Playground

by mihaifm

JavaScript

function get_num_groups(pattern)
{
  groups = {}
  count = 0
  for (var i = 0; i < pattern.length; i++)
  {
	if (groups[pattern[i]])
	{
	  groups[pattern[i]]++;
	}
	else
	{
	  groups[pattern[i]] = 1;
      count++;  
	}
  }
    
  return count;  


alert(gen_num_grups("abab"));}