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There are 3 different tables in Nim

See std/tables in the docs.

⬅️

The tables module implements variants of an efficient hash table (also often named dictionary in other programming languages) that is a mapping from keys to values.

There are several different types of hash tables available:

1. Table is the usual hash table,
2. OrderedTable is like Table but remembers insertion order,
3. CountTable is a mapping from a key to its number of occurrences

For consistency with every other data type in Nim, these have value semantics. It means that = performs a copy of the hash table.

For ref semantics, use their Ref variants: TableRef, OrderedTableRef, and CountTableRef.