CODEWITHSUNDEEP
lua
Slavi
Slavi

Reputation: 586

Get values of items inside a table

local sometable = {a = "ag", b = "fa"}
for k, v in ipairs(sometable) do
    print(k, v)
end

The code above is my effort, so how do i print a, b in that table?!

Upvotes: 1

Views: 60

Answers (2)

user6245072
user6245072

Reputation: 2161

ipairs only traversers the array part of a table. What you can do is simply writing

print(sometable.a, sometable.b)

or you can cycle through both the dictionary and array parts of the table by using

for key, value in pairs(sometable)

You could also define your own iterator to only cycle through the dictionary part of the table. In my mind it would look like

function cycle(dict)
    local contentarray = {}
    for k, v in pairs(dict) do
        contentarray[#contentarray + 1] = {k, v}
    end
    local n = 0
    return function()
        n = n + 1
        if not contentarray[n] then
            return
        else
            while type(contentarray[n][1]) ~= "string" do
                n = n + 1
            end
            return contentarray[n][1], contentarray[n][2]
         end
    end
end

But that would be higly inefficient.

Upvotes: 0

Yu Hao
Yu Hao

Reputation: 122493

You are using the wrong iterator. ipairs is for sequences. For hash-like tables, use pairs instead:

for k, v in pairs(sometable) do

Upvotes: 2

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