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0 pointsthaumasiotes10y ago0 comments

> Lua tables accept arbitrary objects as keys, and make a difference between `foo[1]` and `foo["1"]`.

That sounds... completely normal? Python dictionaries will do that too. So will Java HashMaps.

0 comments

That comment was responding to a comment about PHP and JS, both of which do not make such a distinction.

There is another subtlety that values associated with integer keys are stored as an array. dicts and HashMaps don't do this.

adrusi10y ago

And not even all integer keys! Lua will efficiently handle sparse arrays using tables.

j / k navigate · click thread line to collapse

That comment was responding to a comment about PHP and JS, both of which do not make such a distinction.

seabee10y ago

There is another subtlety that values associated with integer keys are stored as an array. dicts and HashMaps don't do this.

adrusi10y ago

And not even all integer keys! Lua will efficiently handle sparse arrays using tables.

j / k navigate · click thread line to collapse