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| 1 | import { identical, curryN } from 'ramda';
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| 2 |
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| 3 | /**
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| 4 | * Checks if value is a negative zero (-0).
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| 5 | *
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| 6 | * @func isNegativeZero
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| 7 | * @memberof RA
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| 8 | * @since {@link https://char0n.github.io/ramda-adjunct/2.22.0|v2.22.0}
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| 9 | * @category Type
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| 10 | * @sig * -> Boolean
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| 11 | * @param {*} val The value to test
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| 12 | * @return {boolean}
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| 13 | * @see @see {@link RA.isPositiveZero|isPositiveZero}
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| 14 | * @example
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| 15 | *
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| 16 | * RA.isNegativeZero(-0); //=> true
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| 17 | * RA.isNegativeZero(+0); //=> false
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| 18 | * RA.isNegativeZero(0); //=> false
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| 19 | * RA.isNegativeZero(null); //=> false
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| 20 | */
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| 21 | const isNegativeZero = curryN(1, identical(-0));
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| 22 |
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| 23 | export default isNegativeZero;
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