<hppavilion[1]> le/rn last-class function/A last-class function is a function that cannot be passed as an argument, accept a function as an argument, be returned by a function, return a function, set to a variable other than its initial name, or be called

A last-class function is a function that cannot be passed as an argument, accept a function as an argument, be returned by a function, return a function, set to a variable other than its initial name, or be called