It seems arrays have a limit Topic is solved

[david_ho]

Hi there,

I created an array := [123123@someemail.com , 1231241@someemail.com , ... ] that has about 187 items. I started running into issues. So, I msgboxed the array.length and was not getting any response. I cut the items down to 6, and got array.length is 6 in msgbox. So, I figured there is an array limit. I tried 149 items, and that worked. So, somewhere between 150 and 187 items there is a break down. Is this supposed to be the case? Does the array have a byte size limit? Or is there an item limit? I suppose I can test this out on my own, but also wondering if this is a bug.

Thanks

[lmstearn]

Hi, and welcome to Bug Reports.
Did you want the array elements in a string instead?

Code: Select all

 ["123123@someemail.com", "1231241@someemail.com", ... ] 

Else they are properties returning null from a null class, so expect weirdness.

[gregster]

Afaik, this is not a bug, but AHK v1 has a fixed parser limit of 512 tokens for this kind of hardcoded expressions (AHK v2 now allows a lot more, I think, by allowing dynamic allocations):

Be aware that there is currently a limit of 512 tokens per expression, where [, ], {, }, "item1", key1, : and , each count as one token. When you create large data structures with a single object literal, it is more likely you will encounter this limit.

I think you can work around this programmatically by doing something like this to concatenate arrays (also with more tokens than here):

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arr1 := [5, 6, 7, 8, 9]
arr2 := [1, 2, 3, 4, arr1*]

for index, value in arr2	
	msgbox % index " : " value

Or to insert an array at some position of another array:

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x1 := ["1", "4", "5"]
x2 := ["2", "3"]
x1.InsertAt(2, x2*)      ; insert at position 2
for index, value in x1	
	msgbox % index " : " value

Edit: and yes, lmstearn is of course right. Strings like email addresses should be quoted in expressions. Only pure numbers can be unquoted.

[Delta Pythagorean]

Arrays don't have a .Length property but a .Length() method. There's also a .Count() and .MaxIndex().