51 lines
793 B
Markdown
51 lines
793 B
Markdown
---
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title: Erlang ETS
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category: Elixir
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weight: -1
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---
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## ETS
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### Usage
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```elixir
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iex> table = :ets.new(:my_table, [])
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8211
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```
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```elixir
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iex> :ets.insert(table, {:fruit, "Apple"})
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iex> :ets.lookup(table, :fruit)
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[{:fruit, "Apple"}]
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```
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```elixir
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iex> :ets.delete(table)
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iex> :ets.delete_all_objects(table)
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```
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### Flags
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```elixir
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iex> table = :ets.new(:my_table, [:set, :protected])
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```
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{: .-setup}
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| `:set` | no duplicate keys (or: `:ordered_set`, `:bag`, `:duplicate_bag`) |
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| `:protected` | only this process can use it (or: `:public`, `:private`) |
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### Ordered sets
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```elixir
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:ets.first(table)
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:ets.last(table)
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:ets.next(table, key)
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:ets.prev(table, key)
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```
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## References
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{: .-one-column}
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* <http://erlang.org/doc/man/ets.html>
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* <http://learnyousomeerlang.com/ets>
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