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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | 3x 15x 1x 1x 1x 1x 1x | /**
* @param value The value to check
* @returns {boolean} Returns true if the value is an NaN (not a number), else false
*
* @see {@link https://lodash.com/docs#isNaN}
*
* @since v0.1.0-beta.1
*/
export function isNaN(value: unknown) {
return Number.isNaN(value)
}
if (import.meta.vitest) {
const { test, expect } = import.meta.vitest
test('isNaN', () => {
expect(isNaN(Number.NaN)).toBe(true)
expect(isNaN(1)).toBe(false)
expect(isNaN('1')).toBe(false)
})
}
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