@aws/pdk
Version:
All documentation is located at: https://aws.github.io/aws-pdk
50 lines (43 loc) • 1.13 kB
JavaScript
var _arity =
/*#__PURE__*/
require("./internal/_arity.js");
var _pipe =
/*#__PURE__*/
require("./internal/_pipe.js");
var reduce =
/*#__PURE__*/
require("./reduce.js");
var tail =
/*#__PURE__*/
require("./tail.js");
/**
* Performs left-to-right function composition. The first argument may have
* any arity; the remaining arguments must be unary.
*
* In some libraries this function is named `sequence`.
*
* **Note:** The result of pipe is not automatically curried.
*
* @func
* @memberOf R
* @since v0.1.0
* @category Function
* @sig (((a, b, ..., n) -> o), (o -> p), ..., (x -> y), (y -> z)) -> ((a, b, ..., n) -> z)
* @param {...Function} functions
* @return {Function}
* @see R.compose
* @example
*
* const f = R.pipe(Math.pow, R.negate, R.inc);
*
* f(3, 4); // -(3^4) + 1
* @symb R.pipe(f, g, h)(a, b) = h(g(f(a, b)))
* @symb R.pipe(f, g, h)(a)(b) = h(g(f(a)))(b)
*/
function pipe() {
if (arguments.length === 0) {
throw new Error('pipe requires at least one argument');
}
return _arity(arguments[0].length, reduce(_pipe, arguments[0], tail(arguments)));
}
module.exports = pipe;