catalog.targetPhotos OR catalog:getTargetPhotos ()

[ADrobkov]

Hello! Tell me, who knows and can explain, than differ:

local photos = catalog.targetPhotos --table: 000000024BB4D970

local selectedPhotos = catalog:getTargetPhotos () --table: 000000025491B8F0

The object has the same photos, but the table IDs are different. I can not understand the difference, and what in what case to use...

[johnrellis · Accepted solution]

Internally, catalog.targetPhotos gets translated to catalog:getTargetPhotos(), so they're equivalent.  Every time you evaluate catalog:getTargetPhotos(), a new table is constructed and returned.  catalog.targetPhotos is about half as fast as catalog:getTargetPhotos() because of the internal steps taken to translate it to catalog:getTargetPhotos().  (But we're talking on the order of 12 usecs versus 6, not likely to make a difference in practice.)

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[ADrobkov]

Thanks!))