Come to think of it you may also want to check that numeric indices are indeed positive integers before appending their value. I usually don't because their not being so is rare.

Den tis 30 aug. 2022 10:56BPJ <bpj@melroch.se> skrev:


Den mån 29 aug. 2022 20:13Hans Hagen via ntg-context <ntg-context@ntg.nl> skrev:
On 8/29/2022 7:33 PM, BPJ via ntg-context wrote:
> Hi,
>
> I use the attached Lua function to merge array, map and mixed tables alike
> (but differently! :-) The trick is to check if each key is numeric or not,
> append if it is and overwrite if it isn't.

you really want something like this then:

local  tab = table.pack(...)
local  rv  = {}

Thanks. I was manually translating from MoonScript (https://moonscript.org) where variables are local by default.


> This function just ignores non-table arguments because that is what I
> usually want. You may want to throw an error instead. Also it uses
> table.pack. You might need to use `tab = {...}` and ipairs, or implement
> pack:
I might add table.himerged (hash and index) but slightly different (and
some 30% faster) to util-tab but i think merging mixed hash/indexed
tables is rare.

Hans

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