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Automatic creation date for Django model form objects?
...o.utils.timezone modules are available, so you can do e.g. timezone.now() >>> timezone.now()
– Kaleem Ullah
Jun 21 '16 at 10:56
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Handling optional parameters in javascript
...gument order
you don't have to do type checking
it's easier to define default values because no type checking is necessary
less headaches. imagine if you added a fourth argument, you'd have to update your type checking every single time, and what if the fourth or consecutive are also functions?
Dr...
Why do I get the error “Unsafe code may only appear if compiling with /unsafe”?
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For everybody who uses Rider you have to select your project>Right Click>Properties>Configurations Then select Debug and Release and check "Allow unsafe code" for both.
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Can't choose class as main class in IntelliJ
...package tree of these classes, right-click and choose "Mark Directory as -> Source Root"
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Difference between Build Solution, Rebuild Solution, and Clean Solution in Visual Studio?
...hink it needs to rebuild a project, it won't. It may also use partially-built bits of the project if they haven't changed (I don't know how far it takes this)
Rebuild solution will clean and then build the solution from scratch, ignoring anything it's done before. The difference between this and "Cl...
what is the most efficient way of counting occurrences in pandas?
...counting by using the option dropna=False (default is True)
An example:
>>> df['Embarked'].value_counts(dropna=False)
S 644
C 168
Q 77
NaN 2
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Validating IPv4 addresses with regexp
...|2[0-4][0-9]|[01]?[0-9][0-9]?(\.|$)){4} , but it produces some strange results:
36 Answers
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How to generate Javadoc HTML files in Eclipse?
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Project > Generate Javadoc....
In the Javadoc command: field, browse to find javadoc.exe (usually at [path_to_jdk_directory]\bin\javadoc.exe).
Check the box next to the project/package/file for which you are creating the Javadoc.
I...
mongodb group values by multiple fields
...re('mz/fs');
const uri = 'mongodb://localhost:27017';
const log = data => console.log(JSON.stringify(data, undefined, 2));
(async function() {
try {
const client = await MongoClient.connect(uri);
const db = client.db('bookDemo');
const books = db.collection('books');
let {...
How to revert (Roll Back) a checkin in TFS 2010
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Without using power tools or command line:
ensure Tools->Options->Source Control->Visual Studio Team Foundation Server UNCHECK Get latest version of item on check out
View the history of project folder in Source Control Explorer and right click on the changeset to roll bac...