bc518174
 王天杨
提交两个项目文件
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
import { isDate } from "./isDate.mjs";
import { toDate } from "./toDate.mjs";
/**
* @name isValid
* @category Common Helpers
* @summary Is the given date valid?
*
* @description
* Returns false if argument is Invalid Date and true otherwise.
* Argument is converted to Date using `toDate`. See [toDate](https://date-fns.org/docs/toDate)
* Invalid Date is a Date, whose time value is NaN.
*
* Time value of Date: http://es5.github.io/#x15.9.1.1
*
* @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).
*
* @param date - The date to check
*
* @returns The date is valid
*
* @example
* // For the valid date:
* const result = isValid(new Date(2014, 1, 31))
* //=> true
*
* @example
* // For the value, convertable into a date:
* const result = isValid(1393804800000)
* //=> true
*
* @example
* // For the invalid date:
* const result = isValid(new Date(''))
* //=> false
*/
export function isValid(date) {
if (!isDate(date) && typeof date !== "number") {
return false;
}
const _date = toDate(date);
return !isNaN(Number(_date));
}
// Fallback for modularized imports:
export default isValid;
|
