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Last change
on this file was d24f17c, checked in by Aleksandar Panovski <apano77@…>, 15 months ago |
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| [d24f17c] | 1 | import { both, equals, length, pipe, curryN } from 'ramda';
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| 2 | import isArray from './isArray';
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| 3 |
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| 4 | /**
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| 5 | * Checks if input value is a pair.
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| 6 | *
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| 7 | * @func isPair
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| 8 | * @memberOf RA
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| 9 | * @since {@link https://char0n.github.io/ramda-adjunct/1.19.0|v1.19.0}
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| 10 | * @category Type
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| 11 | * @sig * -> Boolean
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| 12 | * @param {*} val The value to test
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| 13 | * @return {boolean}
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| 14 | * @see {@link http://ramdajs.com/docs/#pair|R.pair}, {@link RA.isNotPair|isNotPair}
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| 15 | * @example
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| 16 | *
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| 17 | * RA.isPair([]); // => false
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| 18 | * RA.isPair([0]); // => false
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| 19 | * RA.isPair([0, 1]); // => true
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| 20 | * RA.isPair([0, 1, 2]); // => false
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| 21 | * RA.isPair({ 0: 0, 1: 1 }); // => false
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| 22 | * RA.isPair({ foo: 0, bar: 0 }); // => false
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| 23 | */
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| 24 | var isPair = curryN(1, both(isArray, pipe(length, equals(2))));
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| 25 | export default isPair; |
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