HH\ImmVector::fromKeysOf

Creates an ImmVector from the keys of the specified container.

Description

public static function fromKeysOf(
  ?KeyedContainer<Tk,mixed> $container,
): ImmVector<Tk>

Creates an ImmVector from the keys of the specified container.

Every key in the provided KeyedContainer will appear sequentially in the returned ImmVector, with the next available integer key assigned to each.

Parameters

  • ?KeyedContainer<Tk,mixed> $container - The container with the keys used to create the current ImmVector.

Return Values

Examples

See Vector::fromKeysOf for usage examples.