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35 lines
1007 B
TypeScript
35 lines
1007 B
TypeScript
/**
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* @name isValid
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* @category Common Helpers
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* @summary Is the given date valid?
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*
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* @description
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* Returns false if argument is Invalid Date and true otherwise.
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* Argument is converted to Date using `toDate`. See [toDate](https://date-fns.org/docs/toDate)
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* Invalid Date is a Date, whose time value is NaN.
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*
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* Time value of Date: http://es5.github.io/#x15.9.1.1
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*
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* @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
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*
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* @param date - The date to check
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*
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* @returns The date is valid
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*
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* @example
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* // For the valid date:
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* const result = isValid(new Date(2014, 1, 31))
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* //=> true
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*
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* @example
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* // For the value, convertable into a date:
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* const result = isValid(1393804800000)
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* //=> true
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*
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* @example
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* // For the invalid date:
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* const result = isValid(new Date(''))
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* //=> false
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*/
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export declare function isValid(date: unknown): boolean;
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