✓ ANSWER ACCEPTED

Iterating through an array?

Asked Oct 31, 2015602 views2 answers

I'm attempting to iterate through an array, like the following:

local array ={
['hi'] = "Hello";
['test'] = "Greetings";
}

and print out the key and value like: hi = Hello My current code is:

for i,v in ipairs(array) do
	print(i.." = "..v)
end

AnonymousOct 31, 2015Edited Oct 31, 2015

2 answers

✓ Accepted answer

ipairs specifically only iterates through integer numerical indices. What you want to use is pairs:

for i,v in pairs(array)do
	print(i.." = "..v)
end

AnonymousOct 31, 2015Edited Oct 31, 2015Permalink

5 comments

This is the answer you're looking for, why did someone vote down? I'm voting up, he doesn't deserve to lose rep for this, it works!

AnonymousOct 31, 2015#

I agree with Undeniable, though unfortunately, I do not have enough reputation to up-vote. Just know that if I could, I most certainly would.

AnonymousOct 31, 2015#

It's worth pointing out that 'i' for 'index' isn't a good variable name in this situation, because you're not using a list.

AnonymousOct 31, 2015#

Index doesn't necessarily mean integer. An index can be anything. It could be the table itself. t={} t[t]=t print(t==t[t[t[t]][t]])

AnonymousOct 31, 2015#

Who downvoted me, we're about to fight.

AnonymousOct 31, 2015#

well, what I see happening is you are putting tables in arrays and the tables are something, idk your thing is hard to read. What I would do though is.

local array = {
	Hi = "Hello", -- hi is just a codename for Hello like print(array.Hi) would print out Hello
	Bye = "Good-Bye"
}

for i,v in pairs(array) do
	print(v)
end

AnonymousOct 31, 2015Permalink

This discussion is preserved as it was. New answers, comments, and votes are closed.