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Tables as associative arrays
Tables and the table library. example from a Well House Consultants training course
More on Tables and the table library. [link]
Source code: taba Module: U105
--[[ As well as numbering from one upwards, you can name and label table members in other ways ]] print ("Keyed or associative table") assoc = {["Hood"] = "Robin", ["Dickens"] = "Charles", ["The Bruce"] = "Robert", ["2nd"] = "Queen Elizabeth"} assoc["VIII"] = "Henry" print ("cannot count through ...") for k=1,#assoc do print (k .. " - " .. assoc[k]) end print ("use pairs instead") for key,value in pairs(assoc) do print (key .. " --> " .. value) end print ("\nA Shorthand for single word, unreserved, keys") as2 = {Hampshire = "Southampton", Wiltshire = "Trowbridge", Somerset = "Taunton", Devon = "Exeter"} -- How to modify values for key,value in pairs(as2) do as2[key] = as2[key] .. " - County Town" end for key,value in pairs(as2) do print (key .. " --> " .. value) end --[[ ---------------- Sample Output -------------- [trainee@easterton u105]$ lua taba Keyed or associative table cannot count through ... use pairs instead 2nd --> Queen Elizabeth Dickens --> Charles VIII --> Henry The Bruce --> Robert Hood --> Robin A Shorthand for single word, unreserved, keys Devon --> Exeter - County Town Hampshire --> Southampton - County Town Somerset --> Taunton - County Town Wiltshire --> Trowbridge - County Town [trainee@easterton u105]$ ]] Learn about this subject
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