Increment a string with letters?

Question

I need to increment a string from.. let\'s say aaa to zzz and write every incrementation in the console (is incrementation even a word?). It would go s

Answer 1

Took a bit of algorithmic approach. This function takes initial string as an argument, increments next possible char in alphabet and at last returns the result.

function generate(str)
{
  var alphabet = 'abcdefghijklmnopqrstuvwxyz'.split('');
  var chars = [];
  for(var i = 0; i < str.length; i++)
  {
    chars.push(alphabet.indexOf(str[i]));
  }
  for(var i = chars.length - 1; i >= 0 ; i--)
  {
    var tmp = chars[i];
    if(tmp >= 0 && tmp < 25) {
      chars[i]++;
      break;
    }
    else{chars[i] = 0;}
  }
  var newstr = '';
  for(var i = 0; i < chars.length; i++)
  {
    newstr += alphabet[chars[i]];
  }
  return newstr;
} 

Here is the loop helper function which accepts the initial string to loop through and generate all combinations.

function loop(init){
  var temp = init;
  document.write(init + "
");
  while(true)
  {
    temp = generate(temp);
    if(temp == init) break;
    document.write(temp + "
");
  }
}

Usage: loop("aaa");

CODEPEN