Icard/angular-clarity-master(work.../node_modules/ramda/es/traverse.js

48 lines
2.0 KiB
JavaScript

import _curry3 from "./internal/_curry3.js";
import map from "./map.js";
import sequence from "./sequence.js";
/**
* Maps an [Applicative](https://github.com/fantasyland/fantasy-land#applicative)-returning
* function over a [Traversable](https://github.com/fantasyland/fantasy-land#traversable),
* then uses [`sequence`](#sequence) to transform the resulting Traversable of Applicative
* into an Applicative of Traversable.
*
* Dispatches to the `traverse` method of the third argument, if present.
*
* @func
* @memberOf R
* @since v0.19.0
* @category List
* @sig fantasy-land/of :: TypeRep f => f ~> a -> f a
* @sig (Applicative f, Traversable t) => TypeRep f -> (a -> f b) -> t a -> f (t b)
* @sig (Applicative f, Traversable t) => (b -> f b) -> (a -> f b) -> t a -> f (t b)
* @param {Object|Function} TypeRepresentative with an `of` or `fantasy-land/of` method
* @param {Function} f
* @param {*} traversable
* @return {*}
* @see R.sequence
* @example
*
* // Returns `Maybe.Nothing` if the given divisor is `0`
* const safeDiv = n => d => d === 0 ? Maybe.Nothing() : Maybe.Just(n / d)
*
* R.traverse(Maybe.of, safeDiv(10), [2, 4, 5]); //=> Maybe.Just([5, 2.5, 2])
* R.traverse(Maybe.of, safeDiv(10), [2, 0, 5]); //=> Maybe.Nothing
*
* // Using a Type Representative
* R.traverse(Maybe, safeDiv(10), Right(4)); //=> Just(Right(2.5))
* R.traverse(Maybe, safeDiv(10), Right(0)); //=> Nothing
* R.traverse(Maybe, safeDiv(10), Left("X")); //=> Just(Left("X"))
*/
var traverse =
/*#__PURE__*/
_curry3(function traverse(F, f, traversable) {
var of = typeof F['fantasy-land/of'] === 'function' ? F['fantasy-land/of'] : typeof F.of === 'function' ? F.of : F;
var TypeRep = {
'fantasy-land/of': of
};
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));
});
export default traverse;