%-<%

tail_curry

A function to be curried from the end. Can be any function
(normal, already (tail_)curried, primitives).

The value that should be applied to the last argument.


The <code>tail_curry</code> function and the <code>%-<%< code=""> operator performs
currying on a function by partially applying the last argument, returning a
function that accepts all but the last arguments of the former function. If
the last argument is <code>...</code> the curried argument will be interpreted as
the last named argument. If the only argument to the function is <code>...</code>
the curried argument will be interpreted as part of the ellipsis and the
ellipsis will be retained in the returned function. It is thus possible to
curry functions comtaining ellipis arguments to infinity (though not
adviced).
</%<></code>

Partial application is the process of reducing the arity of a
function by fixing one or more arguments, thus creating a new function
lacking the fixed arguments. The curry package provides three different ways
of performing partial function application by fixing arguments from either
end of the argument list (currying and tail currying) or by fixing multiple
named arguments (partial application). This package provides this
functionality through the %<%, %-<%, and %><% operators which allows for
a programming style comparable to modern functional languages. Compared
to other implementations such a purrr::partial() the operators in curry
composes functions with named arguments, aiding in autocomplete etc.

Thomas Pedersen

curry

Partial Function Application with %<%, %-<%, and %><%

tail_curry function


The <code>tail_curry</code> function and the <code>%-<%</code> operator performs
currying on a function by partially applying the last argument, returning a
function that accepts all but the last arguments of the former function. If
the last argument is <code>...</code> the curried argument will be interpreted as
the last named argument. If the only argument to the function is <code>...</code>
the curried argument will be interpreted as part of the ellipsis and the
ellipsis will be retained in the returned function. It is thus possible to
curry functions comtaining ellipis arguments to infinity (though not
adviced).


tail_curry: Curry a function from the end

Description

Usage

Arguments

Value

See Also

Examples