1 | import _arity from "./internal/_arity.js";
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2 | import _pipe from "./internal/_pipe.js";
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3 | import reduce from "./reduce.js";
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4 | import tail from "./tail.js";
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5 | /**
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6 | * Performs left-to-right function composition. The first argument may have
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7 | * any arity; the remaining arguments must be unary.
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8 | *
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9 | * In some libraries this function is named `sequence`.
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10 | *
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11 | * **Note:** The result of pipe is not automatically curried.
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12 | *
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13 | * @func
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14 | * @memberOf R
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15 | * @since v0.1.0
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16 | * @category Function
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17 | * @sig (((a, b, ..., n) -> o), (o -> p), ..., (x -> y), (y -> z)) -> ((a, b, ..., n) -> z)
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18 | * @param {...Function} functions
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19 | * @return {Function}
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20 | * @see R.compose
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21 | * @example
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22 | *
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23 | * const f = R.pipe(Math.pow, R.negate, R.inc);
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24 | *
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25 | * f(3, 4); // -(3^4) + 1
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26 | * @symb R.pipe(f, g, h)(a, b) = h(g(f(a, b)))
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27 | */
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28 |
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29 | export default function pipe() {
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30 | if (arguments.length === 0) {
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31 | throw new Error('pipe requires at least one argument');
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32 | }
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33 |
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34 | return _arity(arguments[0].length, reduce(_pipe, arguments[0], tail(arguments)));
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35 | } |
\ | No newline at end of file |