Package Exports

js.optional

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Readme

js.Optional

API

equals({*}) - Indicates whether some other object is "equal to" this Optional.
filter({function}) - If a value is present, pass the Optional value to predicate function, return an Optional describing the value, otherwise return an empty Optional.
isPresent() - If a value is present, return true if Optional value is not 'null' of 'undefined', otherwise return false.
isPresent({function}) - If a value is present, invoke the specified consumer with the value, otherwise do nothing.
map({function}) - If a value is present, apply the provided mapping function to it, and if the result is non-null, return an Optional describing the result. Otherwise return an empty Optional.
orElse({*}) - Return the value if present, otherwise return other.
orElseGet({Optional}) - Return the value if present, otherwise invoke 'other.get' and return the result of that invocation.

Static

empty() - Returns an empty Optional.
of() - Returns an Optional describing the specified value, if non-null, otherwise returns an empty Optional.
ofNullable() - Returns an Optional describing the specified value, if non-null, otherwise returns an empty Optional.