import {DayOfWeek} from '@js-joda/root/packages/core/src/DayOfWeek.js'

public class | source

DayOfWeek

Extends:

TemporalAccessor → DayOfWeek

Static properties of Class DayOfWeek

DayOfWeek.MONDAY, DayOfWeek.TUESDAY, DayOfWeek.WEDNESDAY, DayOfWeek.THURSDAY, DayOfWeek.FRIDAY, DayOfWeek.SATURDAY, DayOfWeek.SUNDAY

Static Method Summary

Static Public Methods
public static	from(temporal: TemporalAccessor): DayOfWeek Obtains an instance of DayOfWeek from a temporal object.
public static	of(dayOfWeek: number): DayOfWeek Obtains an instance of DayOfWeek from an `int` value.
public static	valueOf(name: string): DayOfWeek
public static	values(): DayOfWeek[]

Method Summary

Public Methods
public	adjustInto(temporal: TemporalAdjusters): Temporal Adjusts the specified temporal object to have this day-of-week.
public	compareTo(other: DayOfWeek): number Compares this DayOfWeek to another DayOfWeek.
public	displayName(style: TextStyle, locale: Locale): string Gets the textual representation, such as 'Mon' or 'Friday'.
public	equals(other: *): boolean
public	get(field: TemporalField): number Gets the value of the specified field from this day-of-week as an `int`.
public	getLong(field: TemporalField): number Gets the value of the specified field from this day-of-week as a `long`.
public	isSupported(field: TemporalField): boolean Checks if the specified field is supported.
public	minus(days: number): DayOfWeek Returns the day-of-week that is the specified number of days before this one.
public	name(): string
public	ordinal(): number
public	plus(days: number): DayOfWeek Returns the day-of-week that is the specified number of days after this one.
public	query(query: TemporalQuery): * Queries this day-of-week using the specified query.
public	range(field: TemporalField): ValueRange Gets the range of valid values for the specified field.
public	toJSON(): string toJSON() use by JSON.stringify delegates to toString()
public	toString(): string
public	value(): number Gets the day-of-week `int` value.

Inherited Summary

From class TemporalAccessor
public	get(field: TemporalField): number Gets the value of the specified field as an `int`.
public	getLong(field: *)
public	isSupported(field: *)
public	query(query: TemporalQuery): * Queries this date-time.
public	range(field: TemporalField): ValueRange Gets the range of valid values for the specified field.

Static Public Methods

public static from(temporal: TemporalAccessor): DayOfWeek source

Obtains an instance of DayOfWeek from a temporal object.

A TemporalAccessor represents some form of date and time information. This factory converts the arbitrary temporal object to an instance of DayOfWeek.

The conversion extracts the ChronoField#DAY_OF_WEEK field.

This method matches the signature of the functional interface TemporalQuery allowing it to be used as a query via method reference, DayOfWeek::from.

Params:

Name	Type	Attribute	Description
temporal	TemporalAccessor		the temporal object to convert, not null

Return:

DayOfWeek

the day-of-week, not null

Throw:

*	DateTimeException if unable to convert to a DayOfWeek

public static of(dayOfWeek: number): DayOfWeek source

Obtains an instance of DayOfWeek from an int value.

DayOfWeek is an enum representing the 7 days of the week. This factory allows the enum to be obtained from the int value. The int value follows the ISO-8601 standard, from 1 (Monday) to 7 (Sunday).

Params:

Name	Type	Attribute	Description
dayOfWeek	number	nullable: false	the day-of-week to represent, from 1 (Monday) to 7 (Sunday)

Return:

DayOfWeek

the day-of-week singleton, not null

Throw:

*	DateTimeException if the day-of-week is invalid

public static valueOf(name: string): DayOfWeek source

Params:

Name	Type	Attribute	Description
name	string

Return:

DayOfWeek

public static values(): DayOfWeek[] source

Return:

DayOfWeek[]

Public Methods

public adjustInto(temporal: TemporalAdjusters): Temporal source

Adjusts the specified temporal object to have this day-of-week.

This returns a temporal object of the same observable type as the input with the day-of-week changed to be the same as this.

The adjustment is equivalent to using Temporal#with passing ChronoField#DAY_OF_WEEK as the field. Note that this adjusts forwards or backwards within a Monday to Sunday week. See WeekFields#dayOfWeek for localized week start days. See TemporalAdjusters for other adjusters with more control, such as next(MONDAY).

In most cases, it is clearer to reverse the calling pattern by using Temporal#with:

  // these two lines are equivalent, but the second approach is recommended
  temporal = thisDayOfWeek.adjustInto(temporal);
  temporal = temporal.with(thisDayOfWeek);

For example, given a date that is a Wednesday, the following are output:

  dateOnWed.with(MONDAY);     // two days earlier
  dateOnWed.with(TUESDAY);    // one day earlier
  dateOnWed.with(WEDNESDAY);  // same date
  dateOnWed.with(THURSDAY);   // one day later
  dateOnWed.with(FRIDAY);     // two days later
  dateOnWed.with(SATURDAY);   // three days later
  dateOnWed.with(SUNDAY);     // four days later

This instance is immutable and unaffected by this method call.

Params:

Name	Type	Attribute	Description
temporal	TemporalAdjusters		the target object to be adjusted, not null

Return:

Temporal

the adjusted object, not null

Throw:

*	DateTimeException if unable to make the adjustment
*	ArithmeticException if numeric overflow occurs

public compareTo(other: DayOfWeek): number source

Compares this DayOfWeek to another DayOfWeek.

The comparison is based on the value of the DayOfWeek. It is "consistent with equals", as defined by Comparable.

Params:

Name	Type	Attribute	Description
other	DayOfWeek		the other year to compare to, not null

Return:

number

the comparator value, negative if less, positive if greater

public displayName(style: TextStyle, locale: Locale): string source

Gets the textual representation, such as 'Mon' or 'Friday'.

This returns the textual name used to identify the day-of-week. The parameters control the length of the returned text and the locale.

If no textual mapping is found then the numeric value (see getValue) is returned.

Params:

Name	Type	Attribute	Description
style	TextStyle		the length of the text required, not null
locale	Locale		the locale to use, not null

Return:

string

the text value of the day-of-week, not null

public equals(other: *): boolean source

Params:

Name	Type	Attribute	Description
other	*

Return:

boolean

public get(field: TemporalField): number source

Gets the value of the specified field from this day-of-week as an int.

This queries this day-of-week for the value for the specified field. The returned value will always be within the valid range of values for the field. If it is not possible to return the value, because the field is not supported or for some other reason, an exception is thrown.

If the field is ChronoField#DAY_OF_WEEK then the value of the day-of-week, from 1 to 7, will be returned. All other ChronoField instances will throw a DateTimeException.

If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.getFrom passing this as the argument. Whether the value can be obtained, and what the value represents, is determined by the field.

Override:

TemporalAccessor#get

Params:

Name	Type	Attribute	Description
field	TemporalField		the field to get, not null

Return:

number

the value for the field, within the valid range of values

Throw:

*	DateTimeException if a value for the field cannot be obtained
*	DateTimeException if the range of valid values for the field exceeds an `int`
*	DateTimeException if the value is outside the range of valid values for the field
*	ArithmeticException if numeric overflow occurs

public getLong(field: TemporalField): number source

Gets the value of the specified field from this day-of-week as a long.

This queries this day-of-week for the value for the specified field. If it is not possible to return the value, because the field is not supported or for some other reason, an exception is thrown.

If the field is ChronoField#DAY_OF_WEEK then the value of the day-of-week, from 1 to 7, will be returned. All other ChronoField instances will throw a DateTimeException.

Override:

TemporalAccessor#getLong

Params:

Name	Type	Attribute	Description
field	TemporalField		the field to get, not null

Return:

number

the value for the field

Throw:

*	DateTimeException if a value for the field cannot be obtained
*	ArithmeticException if numeric overflow occurs

public isSupported(field: TemporalField): boolean source

Checks if the specified field is supported.

This checks if this day-of-week can be queried for the specified field. If false, then calling the range and get methods will throw an exception.

If the field is ChronoField#DAY_OF_WEEK then this method returns true. All other ChronoField instances will return false.

If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.isSupportedBy(TemporalAccessor) passing this as the argument. Whether the field is supported is determined by the field.

Override:

TemporalAccessor#isSupported

Params:

Name	Type	Attribute	Description
field	TemporalField		the field to check, null returns false

Return:

boolean

true if the field is supported on this day-of-week, false if not

public minus(days: number): DayOfWeek source

Returns the day-of-week that is the specified number of days before this one.

The calculation rolls around the start of the year from Monday to Sunday. The specified period may be negative.

This instance is immutable and unaffected by this method call.

Params:

Name	Type	Attribute	Description
days	number		the days to subtract, positive or negative

Return:

DayOfWeek

the resulting day-of-week, not null

public name(): string source

Return:

string

public ordinal(): number source

Return:

number

public plus(days: number): DayOfWeek source

Returns the day-of-week that is the specified number of days after this one.

The calculation rolls around the end of the week from Sunday to Monday. The specified period may be negative.

This instance is immutable and unaffected by this method call.

Params:

Name	Type	Attribute	Description
days	number		the days to add, positive or negative

Return:

DayOfWeek

the resulting day-of-week, not null

public query(query: TemporalQuery): * source

Queries this day-of-week using the specified query.

This queries this day-of-week using the specified query strategy object. The TemporalQuery object defines the logic to be used to obtain the result. Read the documentation of the query to understand what the result of this method will be.

The result of this method is obtained by invoking the TemporalQuery#queryFrom method on the specified query passing this as the argument.

Override:

TemporalAccessor#query

Params:

Name	Type	Attribute	Description
query	TemporalQuery		the query to invoke, not null

Return:

*	the query result, null may be returned (defined by the query)

Throw:

*	DateTimeException if unable to query (defined by the query)
*	ArithmeticException if numeric overflow occurs (defined by the query)

public range(field: TemporalField): ValueRange source

Gets the range of valid values for the specified field.

The range object expresses the minimum and maximum valid values for a field. This day-of-week is used to enhance the accuracy of the returned range. If it is not possible to return the range, because the field is not supported or for some other reason, an exception is thrown.

If the field is ChronoField#DAY_OF_WEEK then the range of the day-of-week, from 1 to 7, will be returned. All other ChronoField instances will throw a DateTimeException.

If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.rangeRefinedBy(TemporalAccessor) passing this as the argument. Whether the range can be obtained is determined by the field.

Override:

TemporalAccessor#range

Params:

Name	Type	Attribute	Description
field	TemporalField		the field to query the range for, not null

Return:

ValueRange

the range of valid values for the field, not null

Throw:

*	DateTimeException if the range for the field cannot be obtained

public toJSON(): string source

toJSON() use by JSON.stringify delegates to toString()

Return:

string

public toString(): string source

Return:

string

public value(): number source

Gets the day-of-week int value.

The values are numbered following the ISO-8601 standard, from 1 (Monday) to 7 (Sunday). See WeekFields#dayOfWeek for localized week-numbering.

Return:

number

the day-of-week, from 1 (Monday) to 7 (Sunday)