remove string duplicates

[moley]

i'm trying to remove the duplcate entries from the example string below:

var myString ="log177, log177, log277, log178"

what's the simplest way of doing this??

Thanks

 

[chessbot]

How about this?

var data = "log177, log177, log277, log178";
function contains(str)
{
  for (var i=0; i<this.length; i++)
  {
    if (this[i] == str)
      return true;
  }
  return false;
}
Array.prototype.contains = contains;

function removeDuplicates(str)
{
  var d = str.split(", ");
  var tmp = new Array();
  for (var i=0; i<d.length; i++)
  {
    if (!tmp.contains(d[i]))
      tmp.push(d[i]);
  }
  return temp.join(", ");
}

alert(removeDuplicates(data)); // test

--Chessbot

"In that blessed region of Four Dimensions, shall we linger on the threshold of the Fifth, and not enter therein? Ah, no! [...] Then, yielding to our intellectual onset, the gates of the Sixth Dimension shall fly open; after that a Seventh, and then an Eighth -- --" Flatland, A. Square (E. A. Abbott)

 

[vbkris]

chessboot's methodis the best, but i simply couldnt control myself from using RegExp:

<script>
var myString ="log1, log5, log25, log2, log5874, log2, log2,"

i=0
while(myString.match(/(log[\d]+),(.*)\1,/g))
{
	i++
	status=i
	myString=myString.replace(/(log[\d]+),(.*)\1,/g,"$1,$2,")
}
myString=myString.replace(/(\s+,)+/g,",")
myString=myString.replace(/(,+)/g,",")
alert(myString)
</script>

try it out...

Known is handfull, Unknown is worldfull

 

[moley]

Thanks ChessBot but i cant get the code to work. The contains function always returns false.

Any ideas??

 

[vbkris]

how about mine???

Known is handfull, Unknown is worldfull