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C# DateTime to “YYYYMMDDHHMMSS” format
...
This site has great examples check it out
// create date time 2008-03-09 16:05:07.123
DateTime dt = new DateTime(2008, 3, 9, 16, 5, 7, 123);
String.Format("{0:y yy yyy yyyy}", dt); // "8 08 008 2008" year
String.Format("{0:M MM MMM MMMM}", dt); // "3 03 Mar March" month
Strin...
How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
...d down example:
# ll /sys/class/tty/ttyUSB*
lrwxrwxrwx 1 root root 0 2012-03-28 20:43 /sys/class/tty/ttyUSB0 -> ../../devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.0/ttyUSB0/tty/ttyUSB0/
lrwxrwxrwx 1 root root 0 2012-03-28 20:44 /sys/class/tty/ttyUSB1 -> ../../devices/pci0000:00/0000...
How to pad zeroes to a string?
...ill(3))
004
And for numbers:
>>> n = 4
>>> print(f'{n:03}') # Preferred method, python >= 3.6
004
>>> print('%03d' % n)
004
>>> print(format(n, '03')) # python >= 2.6
004
>>> print('{0:03d}'.format(n)) # python >= 2.6 + python 3
004
>>&...
Ignoring time zones altogether in Rails and PostgreSQL
...displayed to the client.
Example (in psql):
db=# SELECT timestamptz '2012-03-05 20:00+03';
timestamptz
------------------------
2012-03-05 18:00:00+01
What happened here?
I chose an arbitrary time zone offset +3 for the input literal. To Postgres, this is just one of many ways to input the ...
Moment js date time comparison
... other things:
There's an error in the first line:
var date_time = 2013-03-24 + 'T' + 10:15:20:12 + 'Z'
That's not going to work. I think you meant:
var date_time = '2013-03-24' + 'T' + '10:15:20:12' + 'Z';
Of course, you might as well:
var date_time = '2013-03-24T10:15:20:12Z';
You're u...
What differences, if any, between C++03 and C++11 can be detected at run-time?
...&& in C++0x, and a conversion to int followed by logical-and in C++03
struct Y { bool x1, x2; };
struct A {
operator int();
template<typename T> operator T();
bool operator+();
} a;
Y operator+(bool, A);
bool isCpp0x() {
return sizeof(&A::operator int&& +a) == s...
Convert an ISO date to the date format yyyy-mm-dd in JavaScript
...
103
Try this
date = new Date('2013-03-10T02:00:00Z');
date.getFullYear()+'-' + (date.getMonth()+1)...
How can I get a precise time, for example in milliseconds in Objective-C?
..._time.h>
– Cœur
Nov 26 '15 at 6:03
@Cœur CACurrentMediaTime should actually be exactly equivalent to my code. Goo...
How can I SELECT rows with MAX(Column value), DISTINCT by another column in SQL?
...on-max row for a given home i.e. for home = 10 you may get : 3 | 10 | 04/03/2009 | john | 300 In other words it doesn't guarantees that all column of a row in resultset will belong to max(datetime) for given home.
– sactiw
Nov 26 '15 at 12:07
...
搭建高可用mongodb集群（二）—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...
...，137 当选主节点，136从137同步数据过来。
Sun Dec 29 22:03:05.351 [rsBackgroundSync] replSet sync source problem: 10278 dbclient error communicating with server: 192.168.1.138:27017
Sun Dec 29 22:03:05.354 [rsBackgroundSync] replSet syncing to: 192.168.1.138:27017
Sun Dec 29 22:...
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