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Finding if a value is a table or a number?
I am trying to loop through a dictionary of player stats, but am having trouble finding a way to make sure a value is a table vs a number value.
My Code:
01 | Players[player]["Stats"] = { |
02 | Chest = {Pectorals = 1}, |
03 | Arms = {Biceps = 1, Triceps = 1}, |
04 | Legs = {Quads = 1, Glutes = 1, Hamstring = 1, Adductors = 1}, |
05 | Core = {Abs = 1, LowerBack = 1}, |
06 |
07 | } |
08 | Players[player]["Stats"]["Stats"] = Instance.new("Folder",player) |
09 |
10 | StatChangeEvent.OnServerEvent:Connect(function(plr) |
11 | local output = 0 |
12 | local function loop() |
13 | for i,v in pairs(Players[plr]["Stats"]) do |
14 | if v[1] then |
15 | loop(v) |
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You can use type(variable) == "number" to check if it is a number or not. Using tonumber(variable) could cause false positives where a string could be considered a number value, which could be exploited and cause bugs. Overscores 381 — 6y
2 answers
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1
You can use the tonumber function to see if something is a number or not. If something can be converted into a number, it returns that number, otherwise, it returns nil.
1 | local t1 = {Jeff = "gee",gdhg = "ooga nooba"} |
2 | local t2 = {"hey",122} |
3 |
4 | print(tonumber(t1))--nil |
5 | print(tonumber(t2))--nil |
6 | print(tonumber(1))--1 |
7 | print(tonumber("1"))--1 |
you could also use the type function to see if the type of an object is a table/number
1 | local t1 = {Jeff = "gee",gdhg = "ooga nooba"} |
2 | local t2 = {"hey",122} |
3 |
4 | print(type(t1))--table |
5 | print(type(25532))--number |
Addition:
If you want to see if something like a string contains a number like:
"happy 57th birthday!"
you would have to use the match function of the strings library to get it
1 | local str = "happy 57th birthday" |
2 |
3 | print(str:match("%d+"))--57 |
(%d+ gets 1 or more repetitions of digits)
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Good stuff DinozCreates 1070 — 6y
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I'm assuming you mean this?
01 | Players[player]["Stats"] = { |
02 | Chest = {Pectorals = 1}, |
03 | Arms = {Biceps = 1, Triceps = 1}, |
04 | Legs = {Quads = 1, Glutes = 1, Hamstring = 1, Adductors = 1}, |
05 | Core = {Abs = 1, LowerBack = 1}, |
06 |
07 | } |
08 | Players[player]["Stats"]["Stats"] = Instance.new("Folder",player) |
09 |
10 | StatChangeEvent.OnServerEvent:Connect(function(plr) |
11 | local output = 0 |
12 | local function loop() |
13 | for i,v in pairs(Players[plr]["Stats"]) do |
14 | if v[1] then |
15 | loop(v) |
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that doesn't work, you have to use tonumber() DeceptiveCaster 3761 — 6y