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[d24f17c] | 1 | import { curry, map, tap } from 'ramda';
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| 2 |
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| 3 | /* eslint-disable max-len */
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| 4 | /**
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| 5 | * Runs the given list of functions in order with the supplied object, then returns the object.
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| 6 | * Also known as the normal order sequencing combinator.
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| 7 | *
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| 8 | * Acts as a transducer if a transformer is given as second parameter.
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| 9 | *
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| 10 | * @func seq
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| 11 | * @aliases sequencing
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| 12 | * @memberOf RA
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| 13 | * @since {@link https://char0n.github.io/ramda-adjunct/2.3.0|v2.3.0}
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| 14 | * @category Function
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| 15 | * @sig [(a -> *), (a -> *), ...] -> a -> a
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| 16 | * @param {Array} fns The list of functions to call in order with `x` whose return values will be thrown away
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| 17 | * @param {*} x
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| 18 | * @return {*} `x`
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| 19 | * @see {@link http://ramdajs.com/docs/#tap|R.tap}, {@link http://www.cs.rpi.edu/academics/courses/spring11/proglang/handouts/lambda-calculus-chapter.pdf|sequencing combinator explained}
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| 20 | * @example
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| 21 | *
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| 22 | * RA.seq([console.info, console.log])('foo'); //=> prints 'foo' via info then log
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| 23 | *
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| 24 | * // usage in composition
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| 25 | * R.pipe(
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| 26 | * R.concat('prefix '),
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| 27 | * RA.seq([
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| 28 | * console.info, //=> prints 'prefix test'
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| 29 | * console.log //=> prints 'prefix test'
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| 30 | * ]),
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| 31 | * R.toUpper
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| 32 | * )('test'); //=> 'PREFIX TEST'
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| 33 | */
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| 34 | /* eslint-enable max-len */
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| 35 |
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| 36 | const seq = curry((fns, x) => tap((tx) => map((fn) => fn(tx))(fns))(x));
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| 37 |
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| 38 | export default seq;
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