datetime
Simple helper to help parse date strings into Date
, with additional functions.
Usage
The following symbols from unicode LDML are supported:
yyyy
- numeric yearyy
- 2-digit yearM
- numeric monthMM
- 2-digit monthd
- numeric daydd
- 2-digit dayH
- numeric hour (0-23 hours)HH
- 2-digit hour (00-23 hours)h
- numeric hour (1-12 hours)hh
- 2-digit hour (01-12 hours)m
- numeric minutemm
- 2-digit minutes
- numeric secondss
- 2-digit secondS
- 1-digit fractionalSecondSS
- 2-digit fractionalSecondSSS
- 3-digit fractionalSeconda
- dayPeriod, eitherAM
orPM
'foo'
- quoted literal./-
- unquoted literal
parse
Takes an input string
and a formatString
to parse to a date
.
import { parse } from 'https://deno.land/std/datetime/mod.ts'
parse("20-01-2019", "dd-MM-yyyy") // output : new Date(2019, 0, 20)
parse("2019-01-20", "yyyy-MM-dd") // output : new Date(2019, 0, 20)
parse("2019-01-20", "dd.MM.yyyy") // output : new Date(2019, 0, 20)
parse("01-20-2019 16:34", "MM-dd-yyyy HH:mm") // output : new Date(2019, 0, 20, 16, 34)
parse("01-20-2019 04:34 PM", "MM-dd-yyyy hh:mm a") // output : new Date(2019, 0, 20, 16, 34)
parse("16:34 01-20-2019", "HH:mm MM-dd-yyyy") // output : new Date(2019, 0, 20, 16, 34)
parse("01-20-2019 16:34:23.123", "MM-dd-yyyy HH:mm:ss.SSS") // output : new Date(2019, 0, 20, 16, 34, 23, 123)
...
format
Takes an input date
and a formatString
to format to a string
.
import { format } from "https://deno.land/std/datetime/mod.ts";
format(new Date(2019, 0, 20), "dd-MM-yyyy"); // output : "20-01-2019"
format(new Date(2019, 0, 20), "yyyy-MM-dd"); // output : "2019-01-20"
format(new Date(2019, 0, 20), "dd.MM.yyyy"); // output : "2019-01-20"
format(new Date(2019, 0, 20, 16, 34), "MM-dd-yyyy HH:mm"); // output : "01-20-2019 16:34"
format(new Date(2019, 0, 20, 16, 34), "MM-dd-yyyy hh:mm a"); // output : "01-20-2019 04:34 PM"
format(new Date(2019, 0, 20, 16, 34), "HH:mm MM-dd-yyyy"); // output : "16:34 01-20-2019"
format(new Date(2019, 0, 20, 16, 34, 23, 123), "MM-dd-yyyy HH:mm:ss.SSS"); // output : "01-20-2019 16:34:23.123"
format(new Date(2019, 0, 20), "'today:' yyyy-MM-dd"); // output : "today: 2019-01-20"
dayOfYear
Returns the number of the day in the year.
import { dayOfYear } from "https://deno.land/std/datetime/mod.ts";
dayOfYear(new Date("2019-03-11T03:24:00")); // output: 70
weekOfYear
Returns the ISO week number of the provided date (1-53)
import { weekOfYear } from "https://deno.land/std/datetime/mod.ts";
weekOfYear(new Date("2020-12-28T03:24:00")); // Returns 53