It is a declarative programming paradigm, which means programming is done with expressions. In functional code, the output value of a function depends only on the arguments that are input to the function, so calling a function f twice with the same value for an argument x will produce the same result f(x) each time.
The definition of a steward is an employee who is charge of the management of a very big house or a person who is responsible for the food and drink staff at a restaurant.The definition of a steward is an employee who distributes food and drinks. 1  An example of steward is the head butler in a mansion.
The Lord High Steward of England held a position of power in the 12th to 14th centuries, and the Lord Steward is the first dignitary of the court. The Stewart family traces its appellation to the office of the High Steward of Scotland. Lord High Steward of Ireland is a hereditary office held since the 15th century.