@stdlib/assert-is-leap-year

Test if a value corresponds to a leap year in the Gregorian calendar.

v0.2.2 URL: https://unpkg.com/@stdlib/assert-is-leap-year@0.2.2/lib/index.js

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stdlib stdassert assertion assert utilities utility utils util date year yr leap leap-year gregorian calendar time is isleap isleapyear type check valid validate test isvalid

leap-year-checker

A utility to check if a given year is a leap year

v1.1.8 URL: https://unpkg.com/leap-year-checker@1.1.8/dist/index.js

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leap year date utility isLeapYear leap year check check leap year leap-year

@stdlib/assert-is-leap-year-cli

Test if a value corresponds to a leap year in the Gregorian calendar.

v0.2.2 URL: https://unpkg.com/@stdlib/assert-is-leap-year-cli@0.2.2/index.js

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stdlib stdassert assertion assert utilities utility utils util date year yr leap leap-year gregorian calendar time is isleap isleapyear type check valid validate test isvalid

date-toolkit

The package used to learn the date time related calculation algorithm (Not guaranteed to be bug free)

v0.8.8 URL: https://unpkg.com/date-toolkit@0.8.8/index.js

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date date formate datetime dates-utils date-tools datekit isLeapYear daysInMonth dayOfYear timestamp formatter monthDiff isEqual add date diff date quarter