Interface Maybe<T>

Returns the first Just between this and another Maybe or Nothing if both this and the argument are Nothing

Lazy version of alt

Maps this with a Maybe function

Structural pattern matching for Maybe in the form of a function

Transforms this with a function that returns a Maybe. Useful for chaining many computations that may result in a missing value

Transforms this with a function that returns a nullable value. Equivalent to m.chain(x => Maybe.fromNullable(f(x)))

Compares the values inside this and the argument, returns true if both are Nothing or if the values are equal

Returns this if it's Nothing, otherwise it returns the result of applying the function argument to this and wrapping it in a Just

Returns the value inside this or undefined if this is Nothing. Use extractNullable if you need a null returned instead

Returns the value inside this or null if this is Nothing. Use extract if you need an undefined returned instead

Takes a predicate function and returns this if the predicate returns true or Nothing if it returns false

Takes a predicate function and returns this if the predicate returns true or Nothing if it returns false

Runs an effect if this is Just, returns this to make chaining other methods possible

Runs an effect if this is Nothing, returns this to make chaining other methods possible

Returns true if this is Just, otherwise it returns false

Returns true if this is Nothing, otherwise it returns false

Flattens nested Maybes. m.join() is equivalent to m.chain(x => x)

Transforms the value inside this with a given function. Returns Nothing if this is Nothing

Maps over this and returns the resulting value or returns the default value if this is Nothing

Returns the default value if this is Nothing, otherwise it return the value inside this

Lazy version of orDefault. Takes a function that returns the default value, that function will be called only if this is Nothing

Takes a reducer and an initial value and returns the initial value if this is Nothing or the result of applying the function to the initial value and the value inside this

Constructs a Right from a Just or a Left with a provided left value if this is Nothing

Returns empty list if the Maybe is Nothing or a list where the only element is the value of Just

Returns the value inside this or throws an error if this is Nothing