Client and backend. This class is shared: the same code is compiled into your app and into your server, so everything on this page works in both.

@FunctionalInterface

public interface DoubleUnaryOperator

An operation on one double that answers a double; the double form of UnaryOperator.

Methods

`public abstract double applyAsDouble(double operand)`	Applies this operator.
`public default` `DoubleUnaryOperator compose(DoubleUnaryOperator before)`	`before`, then this operator on its result.
`public default` `DoubleUnaryOperator andThen(DoubleUnaryOperator after)`	This operator, then `after` on its result.
`public static` `DoubleUnaryOperator identity()`	The operator that answers its operand.

public abstract double applyAsDouble(double operand)

Applies this operator.

the result

public default DoubleUnaryOperator compose(DoubleUnaryOperator before)

before, then this operator on its result.

the composed operator

public default DoubleUnaryOperator andThen(DoubleUnaryOperator after)

This operator, then after on its result.

the composed operator

public static DoubleUnaryOperator identity()

The operator that answers its operand.

the identity operator