g2dateformat v1.7.1
g2DateFormat
This library attempts to provide an easier way to retrieve datetime data by manipulating JS date and time.
This library is easy to use and highly customisable!
Not only can this library help you to acquire current datatime, it can also retrieve specific datetime with timezone offset!
Getting Started
Install
npm install g2dateformat
Then...
import g2DateFormat from 'g2DateFormat';
console.log(g2DateFormat("full_date_weekday", '', 0, 0));
Expected outcome:
1 September 2020, Sunday
Usage
g2DateFormat(output_format, seperator, input_datetime_value, timezone_offset);
This function has 4 parameters:
- output format
- seperator
- input datetime value (default=0)
- timezone offset (default=0)
The first and the second parameter have no default value, the function will return
false
if any of them is left blank.
Example
let current_date = g2DateFormat("YYYYMMDD", ".", 0, 0);
let current_time = g2DateFormat("HHMMSS", ":", 0, 0);
console.log(`Current Date: ${current_date}`);
console.log(`Current Time: ${current_time}`);
Expected output:
Current Date: 2020.09.25
Current Time: 12:30:33
Data Type of the returned value
Return value:
String
Output Formats
There are 40 different output formats:
Basic Formats
format | Output |
---|---|
timestamp | 1598936829 |
full_date | 1 September 2020 |
full_date_DD | 01 September 2020 |
full_date_weekday | 1 September 2020, Sunday |
full_date_DD_weekday | 01 September 2020, Sunday |
month_year | September 2020 |
weekday | Sunday |
YYYY | 2020 |
M | 9 |
MM | 09 |
D | 1 |
DD | 01 |
Date
format | Output |
---|---|
YYYYMM | 202009 |
YYYYMMDD | 20200901 |
MMDD | 0901 |
MMYYYY | 092020 |
DDMMYYYY | 01092020 |
DDMM | 0109 |
YYYYM | 20209 |
YYYYMD | 202091 |
MD | 91 |
MYYYY | 92020 |
DMYYYY | 192020 |
DM | 19 |
Time
format | Output |
---|---|
H | 5 |
M | 7 |
S | 9 |
HH | 05 |
MM | 07 |
SS | 09 |
HM | 57 |
HMS | 579 |
HHMM | 0507 |
HHMMSS | 050709 |
H_APM | 5am |
APM | am |
Time with Sperator
format | Output |
---|---|
HH:MM | 05:07 |
HH:MM:SS | 05:07:09 |
H:MM:SS_APM | 5:07:09am |
H:MM_APM | 5:07am |
The
seperator
parameter has no effect to the output. An empty string""
is expected when you wish to return any of the above output format.That means no matter what you pass into the
seperator
parameter, the output will always be the format stipulated by theoutput_format
parameter.
Example
Recommended:
let example = g2DateFormat("HH:MM:SS", "", 0, 0);
console.log(example);
Expected output:
05:07:09
Another example:
let example = g2DateFormat("HH:MM:SS", "-", 0, 0);
console.log(example);
Expected output:
05:07:09
Input datetime Value
It is the same as creating a new Date object with the new Date() constructor.
There are 4 ways to pass this argument:
0 // default value, which will return the current datetime
year, month, day, hours, minutes, seconds, milliseconds
milliseconds
date string
Example:
g2DateFormat("YYYYMMDD", "-", 0, 0); // 2020-09-01
g2DateFormat("HHMMSS", ":", "2015-01-01 12:05:35", 0); // 12:05:35
g2DateFormat("YYYYMMDD", "-", 1598936829, 0); // 2020-09-01
g2DateFormat("YYYYMMDD", ".", "2000-05-30", 0); // 2000.05.30
Timezone Offset
If you wish to convert the datetime to a specific timezone, you can simply pass the timezone offset (in UNIX format) as the 4th argument.
This could be left blank and the return value will be the datetime data in your local timezone setting.
Example
Original Time (GMT+08:00, Timezone Offset in Seconds: +28800):
2020-01-01 11:00:00
London Time (GMT+01:00, Timezone Offset in Seconds: +3600);
g2DateFormat("YYYYMMDD", "-", 1577847600, 3600);
// Output: 2020-01-01
g2DateFormat("HHMMSS", ":", 1577847600, 3600);
// Output: 04:00:00
New York Time (GMT-04:00, Timezone Offset in Seconds: -14400);
g2DateFormat("YYYYMMDD", "-", 1577847600, -14400);
// Output: 2019-12-31
g2DateFormat("HHMMSS", ":", 1577847600, -14400);
// Output: 23:00:00