[NTG-context] Merging two lua tables

Hans Hagen j.hagen at freedom.nl
Mon Aug 29 20:10:12 CEST 2022


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  = {}

> 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

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------


More information about the ntg-context mailing list