CODEWITHSUNDEEP
lua
Graznarak
Graznarak

Reputation: 3740

Bidirectional Map in Lua

How would you go about making a bidirectional map in Lua? I am new to Lua, and the only way that I can think of is to put every key-value pair in a table, iterate over each pair to add them (key-value swapped) to the original table.

Is there a better way to do this?

Upvotes: 3

Views: 518

Answers (1)

Paul Kulchenko
Paul Kulchenko

Reputation: 26794

I don't think there is a better way (assuming you can handle key/value conflicts). A slightly better way may be to store swapped values when you add a new values to the table (or update/remove an existing value), but the overall idea is the same.

Upvotes: 3

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