typed

A typed thing is a thing with predefined properties and/or methods with are defined by a Type. When creating a typed thing, all defined properties of the Type are guaranteed to exist with a value matching the type definition.

Most, but not all, functions of a thing work on typed things as well. Next to the functions below, a typed thing may have additional methods which are defined by the Type.

Functions

Function	Description
assign	Copies properties from a typed thing.
copy	Copy a typed thing as a new thing. The Type is not preserved.
dup	Duplicate a typed thing while preserving the Type.
each	Iterate over all properties of a typed thing.
equals	Test if two things are equal.
filter	Return a new thing with properties that pass a given test.
get	Return the value of a property on a typed thing by a given property name.
has	Determine if a typed thing has a given property.
id	Return id of the typed thing or nil when the typed thing is not stored.
keys	Return a list with all the property names of a typed thing.
len	Return the number of items.
map	Return a list with the results of calling a provided closure on every property.
set	Set a property of a typed thing to a new value.
values	Return a list with all the property values of a typed thing.
vmap	Returns a new thing with equal keys but values as a result of a given closure.
to_thing	Converts a typed thing to a non-typed thing.
wrap	Wrap the typed thing with a Type.