|
|
- import pipe from "./pipe.js";
- import reverse from "./reverse.js";
- /**
- * Performs right-to-left function composition. The last argument may have
- * any arity; the remaining arguments must be unary.
- *
- * **Note:** The result of compose is not automatically curried.
- *
- * @func
- * @memberOf R
- * @since v0.1.0
- * @category Function
- * @sig ((y -> z), (x -> y), ..., (o -> p), ((a, b, ..., n) -> o)) -> ((a, b, ..., n) -> z)
- * @param {...Function} ...functions The functions to compose
- * @return {Function}
- * @see R.pipe
- * @example
- *
- * const classyGreeting = (firstName, lastName) => "The name's " + lastName + ", " + firstName + " " + lastName
- * const yellGreeting = R.compose(R.toUpper, classyGreeting);
- * yellGreeting('James', 'Bond'); //=> "THE NAME'S BOND, JAMES BOND"
- *
- * R.compose(Math.abs, R.add(1), R.multiply(2))(-4) //=> 7
- *
- * @symb R.compose(f, g, h)(a, b) = f(g(h(a, b)))
- */
-
- export default function compose() {
- if (arguments.length === 0) {
- throw new Error('compose requires at least one argument');
- }
-
- return pipe.apply(this, reverse(arguments));
- }
|
