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In Python, how do you convert a `datetime` object to seconds?
...special date of January 1, 1970 there are multiple options.
For any other starting date you need to get the difference between the two dates in seconds. Subtracting two dates gives a timedelta object, which as of Python 2.7 has a total_seconds() function.
>>> (t-datetime.datetime(1970,1,1...
Fastest way to serialize and deserialize .NET objects
...ring Message { get; set; }
[XmlElement(Order = 5)]
public DateTime StartDate { get; set; }
[XmlElement(Order = 6)]
public DateTime EndDate { get; set; }
public static byte[] Serialize(List<TD> tData) {
using (var ms = new MemoryStream()) {
ProtoBuf.Seri...
How to get subarray from array?
...ce, use my extension to Array Class:
Array.prototype.subarray = function(start, end) {
if (!end) { end = -1; }
return this.slice(start, this.length + 1 - (end * -1));
};
Then:
var bigArr = ["a", "b", "c", "fd", "ze"];
Test1:
bigArr.subarray(1, -1);
< ["b", "c", "fd", "ze"]
T...
What is a method that can be used to increment letters?
...
Took me a while to figure out how to make the Starting character to be an argument. I ended up using ._nextId = [chars.split('').findIndex(x=>x==start)]; Or start+1 if you want it to start 1 more than what you passed in.
– JohnDavid
...
Excluding directory when creating a .tar.gz file
...nd relative paths in the same command.
sudo tar -czvf 2011.10.24.tar.gz ./start-directory --exclude "home/user/start-directory/logs"
will not exclude logs directory but
sudo tar -czvf 2011.10.24.tar.gz ./start-directory --exclude "./start-directory/logs"
will work
...
Instagram how to get my user id from username?
...u sit refreshing this url, you can randomly get other users whose username start with the username you searched for. Eg. if you're searching for "fred1" but there's also a "fred123", you'll get random results! Reported to instagram; awaiting a response :(
– Danny Tuppeny
...
How to write a simple database engine [closed]
...
cstack.github.io/db_tutorial is good starting point.
– Ashish Negi
Oct 30 '18 at 12:39
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show 1 more c...
Force update of an Android app when a new version is available
...
Response
boolean forceUpgrade
boolean recommendUpgrade
When your app starts, you could call this API that pass in the current app version, and check the response of the versioning API call.
If forceUpgrade is true, show a popup dialog with options to either let user quit the app, or go to Go...
How to set environment variable for everyone under my linux system?
... and is
readable. The --noprofile option may
be used when the shell is started to
inhibit this behavior.
...
When an
interactive shell that is not a login
shell is started, bash reads and
executes commands from
/etc/bash.bashrc and ~/.bashrc, if
these files exist. This may be
i...
PowerShell: Run command from script's directory
...example, I have $profile script that finds visual studio solution file and start it. I wanted to store the full path, once a solution file is started. But I wanted to save the file where the original script exists. So I used $PsScriptRoot.
...