[WebDialog] A-H, I-M, N-Z in Javascript

chrisglasier · 13 Nov 2009, 04:52

Can anyone help with an easy way to separate a 1000+ element array into alphabetical chunks as in the caption. First letters are both upper and lower case and there are also special characters. The last can be chucked into a "remainder" array I suppose.

Any help much appreciated!

Chris

thomthom · 13 Nov 2009, 07:55

Untested.


// assuming variable arr with the values we deal with
var ah = new Array()
var im = new Array()
var nz = new Array()
var others = new Array()
arr.sort()
for (value in arr)
{
  switch(value.charAt(0))
  {
  case 'a';
  case 'b';
  case 'c';
  case 'd';
  case 'e';
  case 'f';
  case 'g';
  case 'h';
    ah.push(value)
    break;
  case 'i';
  case 'j';
  case 'k';
  case 'l';
  case 'm';
    im.push(value)
    break;
  case 'n';
  case 'o';
  case 'p';
  case 'q';
  case 'r';
  case 's';
  case 't';
  case 'u';
  case 'v';
  case 'w';
  case 'x';
  case 'y';
  case 'z';
    nz.push(value)
    break;
  default;
    others.push(value)
  }
}

chrisglasier · 13 Nov 2009, 08:00

@thomthom said:

Untested.

About to be! Thanks, will let you know when successful.

I need to add value.charAt(0).toLowerCase() I guess.

Positively

Chris

thomthom · 13 Nov 2009, 08:26

@chrisglasier said:

I need to add value.charAt(0).toLowerCase() I guess.

Yes! I forgot about that!

thomthom · 13 Nov 2009, 08:26

I wonder if javascripts sorting deals with unicode... wonder if it puts the norwegian æøå after z....

chrisglasier · 13 Nov 2009, 09:15

Sorry Thom I cannot get it to work yet. Can you spot anything silly in this code or guide me how to test "your bit." Takk

function apimMethodsAll(sl,xx){
	//lists unique method names sl not used here; xx = "ah" and other labels
	var list = new Array();
	for (n in nset) {
		nn = n.split(".");
		if(nn[0] > 10) continue;
		//cut as sample for testing - contains good range
		if(nn.length == 2){
			thisName = window.nset[n].name;
			list.push(new Array(thisName,n));
		}
	}
	list.sort();
	//list tests OK
	var lastName = null;
	var unique = new Array();
	for(a=0; a<list.length; a++){
		if (list[a][0] != lastName){
			unique.push(list[a][1]);
		}
	lastName = list[a][0];
	}
	//unique tests OK
	var ah = new Array()
	var im = new Array()
	var nz = new Array()
	var spec = new Array()
	for (value in unique){
		switch(value.charAt(0).toLowerCase()){
			case 'a'; 
			case 'b';
			case 'c';
			case 'd';
			case 'e';
			case 'f';
			case 'g';
			case 'h';
			ah.push(value)
			break;
			case 'i';
			case 'j';
			case 'k';
			case 'l';
			case 'm';
			im.push(value)
			break;
			case 'n';
			case 'o';
			case 'p';
			case 'q';
			case 'r';
			case 's';
			case 't';
			case 'u';
			case 'v';
			case 'w';
			case 'x';
			case 'y';
			case 'z';
			nz.push(value)
			break;
			default;
			spec.push(value)
		}	
	}
	//tested alert(ah) blank
  	list = eval(xx)
	//list blank
	coreSliderList(list,0);
	//Doms the list
}

chrisglasier · 13 Nov 2009, 09:24

A snap of the result of running unique array rather than list in the code above

chrisglasier · 13 Nov 2009, 09:41

Sorry just by sending the last stuff I think I have found the answer. Can I get back to you. Takk

chrisglasier · 13 Nov 2009, 15:27

I discussed this with Jim just now and we decided that it is better to include the full methods output for the beta version so interested parties can understand and improve the code holistically. But thanks for your help. Sometimes I'm a little too quick off the mark!

Chris