Radix.fetch

You're seeing just the function fetch, go back to Radix module for more information.

Specs

fetch(tree(), key()) :: {:ok, {key(), value()}} | :error

Fetches the key,value-pair for a specific key in the given tree.

Returns {:ok, {key, value}} or :error when key is not in the tree.

Example

iex> t = new([{<<1>>, 1}, {<<1, 1>>, 2}])
iex> fetch(t, <<1, 1>>)
{:ok, {<<1, 1>>, 2}}
iex>
iex> fetch(t, <<2>>)
:error