Interface None

The number of items this value has.

• Always 0 for maps and absent charge.
• Always 1 for single-valued charge.
• May be any for ,List lists.

Type of this charge value.

undefined when the charge has no value.

Own value of the charge or the value of the first item of the list.

undefined when the charge has no own value, e.g. when it is a map, an empty list, or none.

Obtains an item charge at the given index.

For single-valued charge, map, and URICharge.None always returns itself for indices 0 and -1, and none for any other index.

For the list returns an URI charge of the item at the given index, or none if there is no such item.

Iterates over map entries.

Never iterates for non-map instance.

Obtains a map entry with the given key.

Always returns none for non-map instance.

Checks whether this charge has own value or at leas one list item.

Checks whether this charge is a list.

Checks whether this charge is a map.

Checks whether this charge is none.

Checks whether this charge is a single-valued one.

Checks whether this charge represents something.

Iterates over map entry keys.

Never iterates for non-map instance.

Iterates over charge item charges.

• For the list iterates over its items,
• For absent charge never iterates.
• For everything else iterates over the charge instance itself.