[d24f17c] | 1 | var _curry3 =
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| 2 | /*#__PURE__*/
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| 3 | require("./internal/_curry3.js");
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| 4 |
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| 5 | var map =
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| 6 | /*#__PURE__*/
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| 7 | require("./map.js");
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| 8 |
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| 9 | var sequence =
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| 10 | /*#__PURE__*/
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| 11 | require("./sequence.js");
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| 12 | /**
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| 13 | * Maps an [Applicative](https://github.com/fantasyland/fantasy-land#applicative)-returning
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| 14 | * function over a [Traversable](https://github.com/fantasyland/fantasy-land#traversable),
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| 15 | * then uses [`sequence`](#sequence) to transform the resulting Traversable of Applicative
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| 16 | * into an Applicative of Traversable.
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| 17 | *
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| 18 | * Dispatches to the `traverse` method of the third argument, if present.
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| 19 | *
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| 20 | * @func
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| 21 | * @memberOf R
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| 22 | * @since v0.19.0
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| 23 | * @category List
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| 24 | * @sig fantasy-land/of :: TypeRep f => f ~> a -> f a
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| 25 | * @sig (Applicative f, Traversable t) => TypeRep f -> (a -> f b) -> t a -> f (t b)
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| 26 | * @sig (Applicative f, Traversable t) => (b -> f b) -> (a -> f b) -> t a -> f (t b)
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| 27 | * @param {Object|Function} TypeRepresentative with an `of` or `fantasy-land/of` method
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| 28 | * @param {Function} f
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| 29 | * @param {*} traversable
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| 30 | * @return {*}
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| 31 | * @see R.sequence
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| 32 | * @example
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| 33 | *
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| 34 | * // Returns `Maybe.Nothing` if the given divisor is `0`
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| 35 | * const safeDiv = n => d => d === 0 ? Maybe.Nothing() : Maybe.Just(n / d)
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| 36 | *
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| 37 | * R.traverse(Maybe.of, safeDiv(10), [2, 4, 5]); //=> Maybe.Just([5, 2.5, 2])
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| 38 | * R.traverse(Maybe.of, safeDiv(10), [2, 0, 5]); //=> Maybe.Nothing
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| 39 | *
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| 40 | * // Using a Type Representative
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| 41 | * R.traverse(Maybe, safeDiv(10), Right(4)); //=> Just(Right(2.5))
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| 42 | * R.traverse(Maybe, safeDiv(10), Right(0)); //=> Nothing
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| 43 | * R.traverse(Maybe, safeDiv(10), Left("X")); //=> Just(Left("X"))
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| 44 | */
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| 45 |
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| 46 |
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| 47 | var traverse =
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| 48 | /*#__PURE__*/
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| 49 | _curry3(function traverse(F, f, traversable) {
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| 50 | var of = typeof F['fantasy-land/of'] === 'function' ? F['fantasy-land/of'] : typeof F.of === 'function' ? F.of : F;
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| 51 | var TypeRep = {
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| 52 | 'fantasy-land/of': of
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| 53 | };
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| 54 | return typeof traversable['fantasy-land/traverse'] === 'function' ? traversable['fantasy-land/traverse'](TypeRep, f) : typeof traversable.traverse === 'function' ? traversable.traverse(TypeRep, f) : sequence(TypeRep, map(f, traversable));
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| 55 | });
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| 56 |
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| 57 | module.exports = traverse; |
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