ImmutableSet.prototype.md

ImmutableSet.prototype

This prototype object allows easy access to various helpful built-in methods for manipulating Immutable Sets.

ImmutableSet ( [ iterable ] )

Returns an ImmutableSet using an optional iterable in a similar way to the Set constructor except it cannot be called with new. It is not constructable.

Mutation

All the mutation operations in Set.prototype have equivalent immutable operations which return a different ImmutableSet as the return value.

ImmutableSet.prototype.clear ( )

Returns an empty ImmutableSet.

ImmutableSet.prototype.delete ( value )

If this does not include an entry with the value, return the same ImmutableSet. Otherwise, return an ImmutableSet with the same entries, except the one with value.

Note: The mutable version returns a boolean if the value existed. This use case has to be replaced with a has(value) check on the previous version, or the previous and the next set can be compared as a whole.

ImmutableSet.prototype.add ( value )

If this does not include an entry with the value, return an ImmutableSet with all the same entries plus an entry with value. This adds the entry to the end of the enumeration order.

Otherwise, return the same ImmutableSet as this.

TLDR

The rest of these are just what you would expect and has similar semantics as the mutable Set.

ImmutableSet.prototype.constructor

ImmutableSet.prototype.entries ( )

ImmutableSet.prototype.forEach ( callbackfn [ , thisArg ] )

ImmutableSet.prototype.has ( value )

ImmutableSet.prototype.keys ( )

get ImmutableSet.prototype.size

ImmutableSet.prototype.values ( )

ImmutableSet.prototype @@iterator

ImmutableSet.prototype [ @@toStringTag ]