Class: DefaultMap | Nexus Horatio's Userscripts

base.DefaultMap(factory, iterableopt)

Subclass of {Map} similar to Python's defaultdict.

First argument is a factory function that will create a new default value for the key if not already present in the container.

The factory function may take arguments. When getWithArguments is used, those arguments will be passed to the factory.

Name	Type	Attributes	Description
`factory`	function		Function that creates a new default value if a requested key is not present.
`iterable`	Iterable	<optional>	Passed to {Map} super().

get(key) → {object} lib/base.js, line 942

Name	Type	Description
`key`	object	The key of the element to return from this instance.

object -

The value associated with the key, perhaps newly created.

getWithArguments(key, …args) → {object} lib/base.js, line 960

Variant of Map.prototype.get() that passes args to the factory.

Name	Type	Attributes	Description
`key`	object		The key of the element to return from this instance.
`args`	object	<repeatable>	Extra arguments passed to the factory function if it is called.

object -

The value associated with the key, perhaps newly created.