Javascript Sort Array Removes special Array split character

Question

I'm using double commas (,,) as my array split delimiters. So, when I go to split my array, I use:

    var flt = localStorage.getItem('flt');
    var fltArray = new Array();
    var fltArray = flt.split(",,");

When I sort the array, my sort code strips out the comma at the end of each element. So, the split between all the array elements becomes "," when it was originally ,","

I'm using the following code to sort my array.

fltOfferSellEconArray.sort(function(x,y){
         var xp = x.substr(0,4);
         var yp = y.substr(0,4);
         return xp == yp ? 0 : xp > yp ? -1 : 1;
   });

Is there a way to add a comma to the end of each element without having to loop through the array again?

Here is my array before sorting.....

["0000999X12623220000009999999999,","0300199X1392215130873ySP3sBJLTe,","0301199X1392215191700ySP3sBJLTe,","0302199X1392215252490ySP3sBJLTe,","0303199X13922153062748VplSv6axJ,","0400199X13922155681178VplSv6axJ," ,"0375199X1392215732050ySP3sBJLTe,"]

This is what I NEED it to look like after sort. (note... it just moves the element starting with "0400" to the last element.....

["0000999X12623220000009999999999,","0300199X1392215130873ySP3sBJLTe,","0301199X1392215191700ySP3sBJLTe,","0302199X1392215252490ySP3sBJLTe,","0303199X13922153062748VplSv6axJ,","0375199X1392215732050ySP3sBJLTe,","0400199X13922155681178VplSv6axJ,"]

Your question is unclear. The serialization-delimiter you use doesn't matter for sorting. — Halcyon
– Halcyon, Commented Feb 12, 2014 at 16:52
Can you give an example of what you original array looks like and what it's supposed to look like after sorting? — Matt Burland
– Matt Burland, Commented Feb 12, 2014 at 16:52
OK. I edited question to show what I need it to look like after sort. Sorry. — hypermiler
– hypermiler, Commented Feb 12, 2014 at 17:00

Claudiu · Accepted Answer · 2014-02-12 17:04:42Z

1

It seems to work fine for me:

> a = ["0000999X12623220000009999999999,","0300199X1392215130873ySP3sBJLTe,","0301199X1392215191700ySP3sBJLTe,","0302199X1392215252490ySP3sBJLTe,","0303199X13922153062748VplSv6axJ,","0400199X13922155681178VplSv6axJ," ,"0375199X1392215732050ySP3sBJLTe,"]
> a.sort(function(x,y){
     var xp = x.substr(0,4);
     var yp = y.substr(0,4);
     return xp == yp ? 0 : xp > yp ? -1 : 1;
  });
> a
["0400199X13922155681178VplSv6axJ,", "0375199X1392215732050ySP3sBJLTe,", "0303199X13922153062748VplSv6axJ,", "0302199X1392215252490ySP3sBJLTe,", "0301199X1392215191700ySP3sBJLTe,", "0300199X1392215130873ySP3sBJLTe,", "0000999X12623220000009999999999,"]

What exactly doesn't work for you?

answered Feb 12, 2014 at 17:04

Claudiu

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1 Comment

hypermiler Over a year ago

Thank you to everyone. My array before the sort was defective. Fixed that and everything working fine. Thanks @Claudiu for point this out!

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