| import _arity from './internal/_arity.js'; |
| import _curry2 from './internal/_curry2.js'; |
| import head from './head.js'; |
| import _reduce from './internal/_reduce.js'; |
| import tail from './tail.js'; |
| import identity from './identity.js'; |
| |
| /** |
| * Performs left-to-right function composition using transforming function. The leftmost function may have |
| * any arity; the remaining functions must be unary. |
| * |
| * **Note:** The result of pipeWith is not automatically curried. |
| * |
| * @func |
| * @memberOf R |
| * @category Function |
| * @sig ((* -> *), [((a, b, ..., n) -> o), (o -> p), ..., (x -> y), (y -> z)]) -> ((a, b, ..., n) -> z) |
| * @param {...Function} functions |
| * @return {Function} |
| * @see R.composeWith, R.pipe |
| * @example |
| * |
| * const pipeWhileNotNil = R.pipeWith((f, res) => R.isNil(res) ? res : f(res)); |
| * const f = pipeWhileNotNil([Math.pow, R.negate, R.inc]) |
| * |
| * f(3, 4); // -(3^4) + 1 |
| * @symb R.pipeWith(f)([g, h, i])(...args) = f(i, f(h, f(g, ...args))) |
| */ |
| var pipeWith = /*#__PURE__*/_curry2(function pipeWith(xf, list) { |
| if (list.length <= 0) { |
| return identity; |
| } |
| |
| var headList = head(list); |
| var tailList = tail(list); |
| |
| return _arity(headList.length, function () { |
| return _reduce(function (result, f) { |
| return xf.call(this, f, result); |
| }, headList.apply(this, arguments), tailList); |
| }); |
| }); |
| export default pipeWith; |