date-manip
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A lightweight JavaScript date utility library that provides modularity, high performance, and additional features. It supports various date operations, including date addition and subtraction, formatting, comparison, etc.
21 lines (20 loc) • 817 B
TypeScript
/**
* Checks if a given date is in a leap year.
* 检查给定的日期是否在闰年。
*
* @param date - The date to check. (要检查的日期。)
* @returns A boolean indicating whether the given date is in a leap year. (布尔值,表示给定的日期是否在闰年。)
* @example
* ```ts
* // Checking if a date is in a leap year (检查一个日期是否在闰年)
* const date1 = new Date('2024-01-01');
* const isLeap = isLeapYear(date1);
* console.log(isLeap); // Outputs: true (输出: true)
*
* // Checking if a date is not in a leap year (检查一个日期是否不在闰年)
* const date2 = new Date('2023-01-01');
* const isNotLeap = isLeapYear(date2);
* console.log(isNotLeap); // Outputs: false (输出: false)
* ```
*/
export default function isLeapYear(date: Date): boolean;