Apply partial pattern match on optional value
Checks if value equals optional value, or false if empty
Apply predicate on optional value, or false if empty
An optional value satisfies predicate
An optional value doesn't satisfy predicate
Same as map but function must return an optional value
Apply function on optional value, return default if empty
Apply predicate on optional value, or true if empty
Apply a procedure on option value
Return value, throw exception if empty
Evaluate and return alternate value if empty
Throws a custom object if option is empty.
True if not empty
True if empty
Apply a function on the optional value
Evaluate and return alternate optional value if empty
Unary list of optional value, otherwise the empty list
Split an optional pair to two optional values
Split an optional triple to three optional values
Combine two optional values to make a paired optional value
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Apply partial pattern match on optional value