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String to variable name — Gideros Forum
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    String to variable name

    DikkesnoekDikkesnoek Member
    edited May 2013 in General questions
    Hi,

    I will get a string back from a JSON file like "level01". Now I
    want to convert it to a variable name, like:

    local level01 = 10.

    Any ideas?

    Thanks,

    Marc
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    Comments

    • ar2rsawseenar2rsawseen Maintainer
      @Dikkesnoek usually in such cases tables are used, like
      --you have a table with variables
local vars = {}
--you retrieve a string value
local l = "level01"
 
--you use string value as key and place something in it
vars[l] = 10
      http://appcodingeasy.com/Gideros-Mobile
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    • DikkesnoekDikkesnoek Member
      Thanks ar2,

      Marc
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    • OZAppsOZApps Guru
      @Dikkesnoek,
      though I would advice against this very strongly, you can also set these are global variables and use them as
       name = "Jayant"
 print(_G["name"])
      or the other way round as
       _G["test"] = "This is a test"
print(test)
      twitter: @ozapps | http://www.oz-apps.com | http://howto.oz-apps.com | http://reviewme.oz-apps.com
      Author of Learn Lua for iOS Game Development from Apress ( http://www.apress.com/9781430246626 )
      Cool Vizify Profile at https://www.vizify.com/oz-apps
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    • DikkesnoekDikkesnoek Member
      Ok thanks. I come to this because the level indexes will be generated
      and added to the level string like "level" + "01", "level" + "02" and
      stored in the JSON file. Later on I need to use these names as variables.

      Regards,

      Marc
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