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| 1 | import { both, gt, curryN } from 'ramda';
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| 2 |
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| 3 | import isNumber from './isNumber';
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| 4 |
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| 5 | /**
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| 6 | * Checks if value is a negative `Number` primitive or object. Zero is not considered neither
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| 7 | * positive or negative.
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| 8 | *
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| 9 | * @func isNegative
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| 10 | * @memberOf RA
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| 11 | * @since {@link https://char0n.github.io/ramda-adjunct/1.15.0|v1.15.0}
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| 12 | * @category Type
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| 13 | * @sig * -> Boolean
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| 14 | * @param {*} val The value to test
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| 15 | * @return {boolean}
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| 16 | * @see {@link RA.isPositive|isPositive}
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| 17 | * @example
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| 18 | *
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| 19 | * RA.isNegative(-1); // => true
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| 20 | * RA.isNegative(Number.MIN_VALUE); // => false
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| 21 | * RA.isNegative(+Infinity); // => false
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| 22 | * RA.isNegative(NaN); // => false
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| 23 | * RA.isNegative('5'); // => false
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| 24 | */
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| 25 | const isNegative = curryN(1, both(isNumber, gt(0)));
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| 26 |
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| 27 | export default isNegative;
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