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3144 :: Any future for true associative arrays?

• stbalbach (orginal) [2017-09-03T17:27:39+02:00] view original

  I use associative arrays regularly in Lua and awk but Nim doesn't really have the same. Is there a roadmap or is it too angular to implement?

  I'd like to be able to do something like this (pseudo-code to unique a list of words):

  
  import strutils
  
  var
    arr = split("Blue Blue Red Green", " ")     # list of words
    uniqarr = newSeq[string](0)                 # array to hold unique words
  
  for i in arr:                                 # unique the list
    uniqarr[i] = 1
  
  for j in uniqarr:                             # echo the list
    echo j
  Run

  (There are other methods in Nim to unique, this is a demo of associative array technique)

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• mratsim (orginal) [2017-09-03T18:17:16+02:00] view original

  Can't you use the sets module or maybe the tables module ?

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• Arrrrrrrrr (orginal) [2017-09-03T20:30:04+02:00] view original

  Yeah, it barely takes a few modifications to run the code:

  import strutils, tables
  
  var
    arr = split("Blue Blue Red Green", " ")     # list of words
    uniqarr = initTable[string, int]()          # array to hold unique words
  
  for i in arr:                                 # unique the list
    uniqarr[i] = 1
  
  for j in pairs(uniqarr):                      # echo the list
    echo j
  Run

  Maybe you are thinking in a more complex situation?

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• stbalbach (orginal) [2017-09-04T04:17:53+02:00] view original

  Excellent, thanks. That's all I need is a variable for the key. I'd never looked into tables.

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