Radix.fetch-exclamation-mark
You're seeing just the function
fetch-exclamation-mark
, go back to Radix module for more information.
Fetches the key,value-pair for a specific key
in the given tree
.
Returns the {key, value}
-pair itself, or raises a KeyError
if key
is not in the tree
.
Example
iex> t = new([{<<1>>, 1}, {<<1, 1>>, 2}])
iex> fetch!(t, <<1, 1>>)
{<<1, 1>>, 2}
iex>
iex> fetch!(t, <<2>>)
** (KeyError) key not found <<0b10>>