JS: IteratorResult Interface

IteratorResult Interface Properties

done

true or false

• This is the result status of an iterator next method call.
• If the end of the iterator was reached, done is true.
• If the end was not reached, done is false and a value property is available.
• If a done property (either own or inherited) does not exist, it is consider to have the value false.

"value"

Any JavaScript value.

• If done is false, this is the current iteration element value.
• If done is true, this is the return value of the iterator, if it supplied one.
• If the iterator does not have a return value, value is undefined.
• In that case, the value property may be absent from the conforming object if it does not inherit an explicit value property.