![]() I mocked our Date and some of the supporting methods like so: describe('. date.getDate () returns the day of the month of the date variable tDate (int) sets the day of date ( just the day, leaving the year and month intact) What the statement tDate (act.getDate ()+1) does then is: Set moreDay 's day the value of act 's day plus one. I ran into a similar problem with unit tests (specifically in jest when the unit tests run locally to create the snapshots and then the CI server runs in (potentially) a different timezone causing the snapshot comparison to fail). 2 Date 2Date //1 var date new Date() console. Let offset1 = utcDate.getTime() - tzDate.getTime() Most implementations will support IANA time zone identifiers, such as 'America/New_York'. This is accomplished via the timeZone option to toLocaleString and its variations. In environments that have implemented the ECMASCript Internationalization API (aka "Intl"), a Date object can produce a locale-specific string adjusted to a given time zone identifier. The original local time and offset are not retained in the resulting Date object. It uses this to adjust the value being parsed, and stores the UTC equivalent. It can parse a string containing a numeric UTC offset from any time zone. The setDate () method can also be used to add days to a date: Example const d new Date () d.setDate(d.getDate() + 50) Try it Yourself If adding days shifts the month or year, the changes are handled automatically by the Date object. The only operations the Date object can do with non-local time zones are: ![]() ![]() The details vary per function, and some are implementation-specific. If the function produces a string, then the computer's locale information may be taken into consideration to determine how to produce that string. When various functions of the Date object are used, the computer's local time zone is applied to the internal representation. There is no time zone or string format stored in the Date object itself. The internal representation of a Date object is a single number, representing the number of milliseconds that have elapsed since 00:00:00 UTC, without regard to leap seconds. The JavaScript date setDate () method sets the date value for the particular date on the basis of local time. It has very few facilities for working with time in other time zones. For instance, let’s get the date for 70 seconds after now: let date new Date() tSeconds( date.getSeconds() + 70) alert( date ) We can also set zero or even negative values. JavaScript's Date object tracks time in UTC internally, but typically accepts input and produces output in the local time of the computer it's running on. let date new Date(2016, 1, 28) tDate(date.getDate() + 2) alert( date ) That feature is often used to get the date after the given period of time.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |