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[lua5.1]テーブルのソート

Posted at

Luaでは関数が用意されていないため、ソート用の配列を作成し並べる必要がある。

function tableSort(obj)  
  local sortkey = {}
  local n = 0
  for k,v in pairs(obj) do
    n = n + 1
    sortkey[n] = k
  end
  table.sort(sortkey,function(a,b)
    return tonumber(a) < tonumber(b)
  end)
  return sortkey
end
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