42 lines
1.3 KiB
JavaScript
42 lines
1.3 KiB
JavaScript
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import _curry2 from "./internal/_curry2.js";
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import _assertPromise from "./internal/_assertPromise.js";
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/**
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* Returns the result of applying the onSuccess function to the value inside
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* a successfully resolved promise. This is useful for working with promises
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* inside function compositions.
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*
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* @func
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* @memberOf R
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* @since v0.27.1
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* @category Function
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* @sig (a -> b) -> (Promise e a) -> (Promise e b)
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* @sig (a -> (Promise e b)) -> (Promise e a) -> (Promise e b)
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* @param {Function} onSuccess The function to apply. Can return a value or a promise of a value.
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* @param {Promise} p
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* @return {Promise} The result of calling `p.then(onSuccess)`
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* @see R.otherwise
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* @example
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*
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* const makeQuery = email => ({ query: { email }});
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* const fetchMember = request =>
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* Promise.resolve({ firstName: 'Bob', lastName: 'Loblaw', id: 42 });
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*
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* //getMemberName :: String -> Promise ({ firstName, lastName })
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* const getMemberName = R.pipe(
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* makeQuery,
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* fetchMember,
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* R.andThen(R.pick(['firstName', 'lastName']))
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* );
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*
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* getMemberName('bob@gmail.com').then(console.log);
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*/
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var andThen =
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/*#__PURE__*/
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_curry2(function andThen(f, p) {
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_assertPromise('andThen', p);
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return p.then(f);
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});
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export default andThen;
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