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Understanding exactly when a data.table is a reference to (vs a copy of) another data.table
I'm having a little trouble understanding the pass-by-reference properties of data.table . Some operations seem to 'break' the reference, and I'd like to understand exactly what's happening.
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How do I format a date in Jinja2?
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There are two ways to do it. The direct approach would be to simply call (and print) the strftime() method in your template, for example
{{ car.date_of_manufacture.strftime('%Y-%m-%d') }}
Another, sightly better approach would be to define your ow...
How to load assemblies in PowerShell?
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LoadWithPartialName has been deprecated. The recommended solution for PowerShell V3 is to use the Add-Type cmdlet e.g.:
Add-Type -Path 'C:\Program Files\Microsoft SQL Server\110\SDK\Assemblies\Microsoft.SqlServer.Smo.dll'
Ther...
How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONP
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I think you're a little confused. PYTHONPATH sets the search path for importing python modules, not for executing them like you're trying.
PYTHONPATH Augment the default search path for module files. The
format is the same as the shell...
What is the good python3 equivalent for auto tuple unpacking in lambda?
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No, there is no other way. You covered it all. The way to go would be to raise this issue on the Python ideas mailing list, but be prepared to argue a lot over there to gain some traction.
Actually, just not to say "there is no way out", a third way could be to ...
How to change the docker image installation directory?
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With recent versions of Docker, you would set the value of the data-root parameter to your custom path, in /etc/docker/daemon.json
(according to https://docs.docker.com/engine/reference/commandline/dockerd/#daemon-configuratio...
What are the various “Build action” settings in Visual Studio project properties and what do they do
For the most part, you just take whatever Visual Studio sets it for you as a default... I'm referring to the BuildAction property for each file selected in Solution Explorer. There are a number of options and it's difficult to know what each one of them will do.
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Android dismiss keyboard
...ant to disable or dismiss a virtual Keyboard?
If you want to just dismiss it you can use the following lines of code in your button's on click Event
InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(myEditText.getWindowToken(),...
Javascript - Open a given URL in a new tab by clicking a button
...put type="button" value="button name" onclick="window.open('http://www.website.com/page')" />
Worked for me and it will open an actual new 'popup' window rather than a new full browser or tab. You can also add variables to it to stop it from showing specific browser traits as follows:
onclick=...
Where does Oracle SQL Developer store connections?
...application that I can't get connected to my Oracle Database 11g Express Edition. I created a test database in this edition, and I can connect to the database fine using Oracle SQL Developer, create tables, views etc. However, I'm having a hard time getting connected via my application. Where is the...