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Easy way to see if something is in an array through value instead of index?
When using a dictionary you can check if something is in it very easily like so:
1 | local dict = { |
2 | ["whatever"] = "yeh", |
3 | ["stuff"] = "ok", |
4 | } |
5 |
6 | if dict["whatever"] then |
7 | -- Do your stuff |
8 | end |
As you can see it can be done very easily by seeing if the given dictionary contains that key, however with a typical array you cannot do that, you must do it by index.
01 | local array = {"yeh", "ok"} |
02 |
03 | -- array["yeh"] will not work and will return nil |
04 | -- To find if a value is in it or not you have to run a for loop or know the index |
05 |
06 | -- By index |
07 | if array[1] then |
08 | -- Do your stuff |
09 | end |
10 |
11 | -- By for loop |
12 |
13 | for _, v in pairs(array) do |
14 | if v == "yeh" then |
15 | -- Do your stuff |
16 | end |
17 | end |
This is not that big of a problem as I can easily make a function like this
1 | local function findIn(value, array) |
2 | for _, v in pairs(array) do |
3 | if v == value then return true end |
4 | end |
5 | return false |
6 | end |
I would simply like to know if there is a simpler way to do this.
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There are no built-in functions for searching tables. royaltoe 5144 — 5y
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They're not arrays, they're dictionaries. Arrays contain numerical values, not string values. DeceptiveCaster 3761 — 5y
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False, arrays can be any type of value, it's just a table with no keys. hitonmymetatables 50 — 5y
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http://lua-users.org/wiki/TablesTutorial hitonmymetatables 50 — 5y