Kernel.map_size
You're seeing just the function
map_size
, go back to Kernel module for more information.
Specs
map_size(map()) :: non_neg_integer()
Returns the size of a map.
The size of a map is the number of key-value pairs that the map contains.
This operation happens in constant time.
Allowed in guard tests. Inlined by the compiler.
Examples
iex> map_size(%{a: "foo", b: "bar"})
2