@orioro/expression-date v1.0.1
expressionDate
Set of expressions aimed at solving common date-related operations:
parse, format, compare, validate, manipulate (e.g. move forward, move back).
Most (if not all) operations are based on and built with Luxon
DateTime
. If not stated otherwise, date operations return a string
in ISO 8601 format (2021-01-27T20:38:12.807Z
).
npm install @orioro/expression-date
yarn add @orioro/expression-date
API Docs
DateValue
DateFormat
ISODate
Duration
$date(parseFmtArgs, serializeFormat, date)
$dateNow(serializeFormat)
$dateIsValid()
$dateStartOf(unitExp, date)
$dateEndOf(unitExp, date)
$dateSet(valuesExp, dateExp)
$dateSetConfig(configExp, date)
$dateGt(referenceDateExp, date)
$dateGte(referenceDateExp, date)
$dateLt(referenceDateExp, date)
$dateLte(referenceDateExp, date)
$dateEq(referenceDateExp, compareUnitExp, date)
$dateMoveForward(duration, date)
$dateMoveBackward(duration, date)
ISODate
PlainObject
DateValue
Date input for all $date expressions
DateFormat
Arguments to be forwarded to Luxon corresponding DateTime parser.
If a string
, will be considered as the name of the format.
If an Array
, will be considered as a tuple consisting of
format, formatOptions.
Recognized formats (exported as constants DATE_{FORMAT_IN_CONSTANT_CASE}
):
ISO
ISODate
ISOWeekDate
ISOTime
RFC2822
HTTP
SQL
SQLTime
SQLTime
UnixEpochMs
UnixEpochS
JSDate
PlainObject
LuxonDateTime
ISODate
String in the full ISO 8601 format:
2017-04-20T11:32:00.000-04:00
Duration
Duration represented in an object format:
duration
{Object}years
{Number}quarters
{Number}months
{Number}weeks
{Number}days
{Number}hours
{Number}minutes
{Number}seconds
{Number}milliseconds
{Number}
$date(parseFmtArgs, serializeFormat, date)
Parses a date from a given input format and serializes it into
another format. Use this expression to convert date formats into
your requirements. E.g. UnixEpochMs
into ISO
.
parseFmtArgs
{DateFormat}serializeFormat
{DateFormat}date
{String | Number | Object | Date}- Returns:
date
{String | Number | Object | Date} Output will vary according toserializeFormat
$dateNow(serializeFormat)
Generates a ISO date string from Date.now
serializeFormat
{DateFormat}- Returns:
date
{String | Number | Object | Date}
$dateIsValid()
Verifies whether the given date is valid. From Luxon docs:
The most common way to do that is to over- or underflow some unit:
- February 40th
- 28:00
- 4 pm
- etc See https://github.com/moment/luxon/blob/master/docs/validity.md
{*}
- Returns:
isValid
{Boolean}
$dateStartOf(unitExp, date)
Returns the date at the start of the given unit
(e.g. day
, month
).
unitExp
{String}date
{[ISODate](#isodate)}- Returns:
date
{[ISODate](#isodate)}
$dateEndOf(unitExp, date)
Returns the date at the end of the given unit
(e.g. day
, month
).
unitExp
{String}date
{[ISODate](#isodate)}- Returns:
date
{[ISODate](#isodate)}
$dateSet(valuesExp, dateExp)
Modifies date specific units
and returns resulting date.
See DateTime#set
and DateTime.fromObject
valuesExp
{Object}year
{Number}month
{Number}day
{Number}ordinal
{Number}weekYear
{Number}weekNumber
{Number}weekday
{Number}hour
{Number}minute
{Number}second
{Number}millisecond
{Number}
dateExp
{[ISODate](#isodate)}- Returns:
date
{[ISODate](#isodate)}
$dateSetConfig(configExp, date)
Modifies a configurations of the date.
configExp
{Object}date
{[ISODate](#isodate)}- Returns:
date
{[ISODate](#isodate)}
$dateGt(referenceDateExp, date)
Greater than date > reference
referenceDateExp
{[ISODate](#isodate)}date
{[ISODate](#isodate)}- Returns: {Boolean}
$dateGte(referenceDateExp, date)
Greater than or equal date >= reference
referenceDateExp
{[ISODate](#isodate)}date
{[ISODate](#isodate)}- Returns: {Boolean}
$dateLt(referenceDateExp, date)
Lesser than date < reference
referenceDateExp
{[ISODate](#isodate)}date
{[ISODate](#isodate)}- Returns: {Boolean}
$dateLte(referenceDateExp, date)
Lesser than or equal date <= reference
referenceDateExp
{[ISODate](#isodate)}date
{[ISODate](#isodate)}- Returns: {Boolean}
$dateEq(referenceDateExp, compareUnitExp, date)
date == reference
Converts both date
and reference
and compares their
specified compareUnit
. By default compares millisecond
unit
so that checks whether are exactly the same millisecond in time,
but could be used to compare other units, such as whether two dates
are within the same day
, month
or year
.
referenceDateExp
{[ISODate](#isodate)}compareUnitExp
{String}date
{[ISODate](#isodate)}- Returns: {Boolean}
$dateMoveForward(duration, date)
Modifies the date by moving it forward the duration specified.
duration
{Duration}date
{[ISODate](#isodate)}- Returns:
date
{[ISODate](#isodate)}
$dateMoveBackward(duration, date)
Modifies the date by moving it backward the duration specified.
duration
{Duration}date
{[ISODate](#isodate)}- Returns:
date
{[ISODate](#isodate)}