Sort the letters of string in alphabetical order

Sort the letters of string in alphabetical order is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.

Task

Write a function to sort the letters of string in alphabetical order.

Write the function even your language has a built-in function for it.

Ring

<lang ring> see "working..." + nl see "Sort the letters of string in alphabitical order:" + nl str = "forever ring programming language" see "Input: " + str + nl

for n = 1 to len(str)-1

   for m = n+1 to len(str)
       if ascii(str[n]) > ascii(str[m])
          temp = str[n]
          str[n] = str[m]
          str[m] = temp
       ok
   next

next

str = substr(str," ","") see "Output: " + str + nl see "done..." + nl </lang>

Output:

working...
Sort the letters of string in alphabitical order:
Input: forever ring programming language
Output: aaaeeefgggggiilmmnnnooprrrrruv
done...

Wren

Well, we'll write a function for a bubble sort which we don't have in Wren-sort because it's normally much slower than the other methods. However, it's fast enough here. <lang ecmascript>var bubbleSort = Fn.new { |s|

   var chars = s.toList
   var n = chars.count
   while (true) {
       var n2 = 0
       for (i in 1...n) {
           if (chars[i - 1].codePoints[0] > chars[i].codePoints[0]) {
               chars.swap(i, i - 1)
               n2 = i
           }
       }
       n = n2
       if (n == 0) break
   }
   return chars.join()

}

var s = "forever wren programming language" s = bubbleSort.call(s).trimStart() // get rid of whitespace which will be at the front</lang>

Output:

aaaeeeefggggilmmnnnooprrrrruvw