If so, I've never heard of it before, if there isn't any, I am sorry for posting.
✓ ANSWER ACCEPTED
Is there any other loops other than `while true do end repeat until nil for i=1,1 do end`?
3 answers
✓ Accepted answer
Don't be sorry for posting, that's what this website is for!
The only thing you're missing the generic for loop. It looks like this:
for index,value in pairs(table) do
end
The variables index and value can be replaced with anything. table should be a valid table.
The code will loop through once for every value in the given table. Each time it loops, the 'value' variable will be equal to the value it's currently passing over, and 'index' will be equal to the number of times it's already looped. In programming lingo, this is called an iterator.
Edit: Here's an example:
local stuff = { "Apple", "Pear", "Orange" }
for i,v in pairs(stuff) do
print(i)
print(v)
end
--[[
Output:
1
Apple
2
Pear
3
Orange
]]
Lua has three kinds of loops. while, repeat, and for.
While loops go like this:
while condition do
body
end
Basically, when you get to the loop, you look at the condition.
If it's falsey, skip to the end. If its truthy, run body and then start over, checking the condition again.
Repeat loops are a lot like while loops. They look like this:
repeat
body
until condition
You can rewrite them as while-loops like this:
body
while condition do
body
end
Basically, they always run their inside once before checking the condition. Usually, it's better to use while-loops, but these are occasionally useful.
For loops are the most special. There's the kind you mentioned:
for i = 1, 5 do
print( i )
end
This will print 1 2 3 4 5.
But they can do more than just that! You can choose an increment size:
for i = 0, 10, 2 do
print( i )
end
This prints 0 2 4 6 8 10
For loops also allow the use of iterators. The most famous iterators are pairs and ipairs.
An iterator is a function that when called, produces some output. When you call it again, it produces a different output, and so on. For instance, this generator will produce the numbers 1 to 10:
function oneToTen()
local i = 0
return function()
i = i + 1
if i > 10 then
return nil
end
return i
end
end
So if we do:
for i in oneToTen() do
print( i )
end
Or if we want to print the first 20 squares, we can do this:
function squares()
local i = 0
return function()
i = i + 1
if i > 20 then
return nil
end
return i^2
end
end
And now we can do:
for n in squares() do
print( n )
end
Iterators are extremely powerful, but they can be tricky to write. ipairs and pairs are iterators which iterate over tables, for instance, and they're used all the time.
1 comment
0
You put a lot of effort into this. +1
only
while wait() do
and
math.huge
6 comments
0
NOOBS! -_-
0
'I didn't thumbs you down', while wait do end is one type of loop, it isn't the only one, and math.huge is not a loop, it can he used in different kinds of coding, but it is not a loop.
0
some people use it as a loop :/ tons of Advanced Scripters use it, look in the Forums, also, thnx for not Thumbing me Down, cos all these Noobs Thumbs Down for me just trying to help people...
0
I feel ya man. ;-; Sometimes I get Thumbs'd Down when I post questions, even when there not requests. ;-;
0
Yeah I know man, so annoying
0
This doesn't correlate towards the question at hand; I asked if there were other kinds of loops that aren't that of the standard ones: ones that're unknown or hidden, such as the generic four as @MrFlimsy had touched on & explained.
This discussion is preserved as it was. New answers, comments, and votes are closed.
5 comments
Wow, Thanks man! I never knew that kind of
forloop did a loop, thank you so much! And can you give me an example of one, please? :) +1Sure! Just added one :)
I have one more question, does this
forloop require await(), or can it work without one?It will work without one, because unlike 'while true do' or 'repeat wait until nil' loops, it doesn't repeat infinitely and won't crash your client.
Wow, thats awesome! Thank so much man, this helped allot! ;)