[FIXED] pairs() does not iterate through the dictionary in order

[pyxledev]

Hey everybody, I've been trying to iterate over a stats dictionary but it always ends up giving it mixed up. Here is some code and output:

Code: Select all

Stats = {
        waves = 0;
        time = 0;
        accuracy = 0;
        kills = 0;
        dashKills = 0;
}

Code: Select all

for i in pairs(Stats) do
        print(i)
        ...
end

Output:

Code: Select all

zerpnord@kubuntu:~/Belgeler/Projeler/blockdash$ love .
dashKills
waves
time
kills
accuracy

As you can clearly see, it's not in order which causes some issues. Does anybody know how to fix this? Preferably without a custom function, thanks.

[GVovkiv]

Hey everybody, I've been trying to iterate over a stats dictionary but it always ends up giving it mixed up. Here is some code and output:

Code: Select all

Stats = {
        waves = 0;
        time = 0;
        accuracy = 0;
        kills = 0;
        dashKills = 0;
}

Code: Select all

for i in pairs(Stats) do
        print(i)
        ...
end

Output:

Code: Select all

zerpnord@kubuntu:~/Belgeler/Projeler/blockdash$ love .
dashKills
waves
time
kills
accuracy

As you can clearly see, it's not in order which causes some issues. Does anybody know how to fix this? Preferably without a custom function, thanks.

lua's non numeric values in tables stored as hash, which you can't really sort in any specific way (at least, not in sane way)
you better off use numeric keys and sort them with table.sort in specified way

[BrotSagtMist]

Jup, having no order is in the very definition of this tables. Its not really useful anyway.
You could do a secondary table system to combine strings and integers in ordered mode and of course use ipairs:

Code: Select all

Stats1 = {
        "waves";
        "time";
        "accuracy";
}
Stats2 = {0,0,0}
for k,v in ipairs(Stat1)
 print(v,Stats2[k])
end

But usually anything that needs to display values should be aware of what it is supposed to print, therefore, this is not really a real world usecase.
You do print(Stat.health) and not print(Stat whatever is at position 4) in game UIs.

[pyxledev]

Hey everybody, I've been trying to iterate over a stats dictionary but it always ends up giving it mixed up. Here is some code and output:

Code: Select all

Stats = {
        waves = 0;
        time = 0;
        accuracy = 0;
        kills = 0;
        dashKills = 0;
}

Code: Select all

for i in pairs(Stats) do
        print(i)
        ...
end

Output:

Code: Select all

zerpnord@kubuntu:~/Belgeler/Projeler/blockdash$ love .
dashKills
waves
time
kills
accuracy

As you can clearly see, it's not in order which causes some issues. Does anybody know how to fix this? Preferably without a custom function, thanks.

lua's non numeric values in tables stored as hash, which you can't really sort in any specific way (at least, not in sane way)
you better off use numeric keys and sort them with table.sort in specified way

Thanks for the explanation, I'll change the code.

[pyxledev]

Jup, having no order is in the very definition of this tables. Its not really useful anyway.
You could do a secondary table system to combine strings and integers in ordered mode and of course use ipairs:

Code: Select all

Stats1 = {
        "waves";
        "time";
        "accuracy";
}
Stats2 = {0,0,0}
for k,v in ipairs(Stat1)
 print(v,Stats2[k])
end

But usually anything that needs to display values should be aware of what it is supposed to print, therefore, this is not really a real world usecase.
You do print(Stat.health) and not print(Stat whatever is at position 4) in game UIs.

I actually have another table called StatNames used for the display names in UI. I also tried to loop over StatNames & get Stats because they are in the same order, but it returned nil. It turns out there is no indexing in dicts, so I'll probably straight up write values in Stats just like you wrote. Thanks for the help!