fundamental-constants

Fundamental constants and enumerations.

Some of their values are commonly known, for example the HOURS_COUNT_IN_STELLAR_DAY is 24 and MAXIMAL_DAYS_IN_MONTH is 31. However, without being stored to the constants with clear names, it will be the magic numbers.

Installation

npm i fundamental-constants -E

Content

Compute networking

Constant name	Value
HTTP_DEFAULT_PORT	80
HTTPS_DEFAULT_PORT	443
NETWORK_PORT_MAXIMAL_VALUE	65535
NETWORK_PORT_MINIMAL_VALUE	1

Date and Time

Constant name	Value
DAYS_COUNT_IN_WEEK	7
HOURS_COUNT_IN_STELLAR_DAY	24
MAXIMAL_DAYS_IN_MONTH	31
MAXIMAL_SUPPORTED_UNIX_MILLISECONDS_AMOUNT	8640000000000000
MINIMAL_SUPPORTED_UNIX_MILLISECONDS_AMOUNT	-8640000000000000
MINUTES_COUNT_IN_HOUR	60
MONTHS_COUNT_IN_YEAR	12
SECONDS_COUNT_IN_MINUTE	60

Enumerations

DaysOfWeekNames

Key	Value
sunday	"SUNDAY"
monday	"MONDAY"
tuesday	"TUESDAY"
wednesday	"WEDNESDAY"
thursday	"THURSDAY"
friday	"FRIDAY"
saturday	"SATURDAY"

MonthsNames

Key	Value
january	"JANUARY"
february	"FEBRUARY"
march	"MARCH"
april	"APRIL"
may	"MAY"
june	"JUNE"
july	"JULY"
august	"AUGUST"
september	"SEPTEMBER"
october	"OCTOBER"
november	"NOVEMBER"
december	"DECEMBER"

ISO8601

Constant name	Value
CHARACTERS_COUNT_IN_DATE_PART_OF_ISO8601_STRING	10
CHARACTERS_COUNT_IN_FULL_ISO8601_STRING	24

Email

Constant name	Value
EMAIL_ADDRESS_VALID_PATTERN	/^\w+(?:[.-]?\w+)*@\w+(?:[.-]?\w+)*(?:\.\w{2,3})+$/u
MINIMAL_CHARACTERS_COUNT_OF_EMAIL_ADDRESS	3