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What's an Aggregate Root?
...repository.
The repository encapsulates access to child objects - from a caller's perspective it automatically loads them, either at the same time the root is loaded or when they're actually needed (as with lazy loading).
For example, you might have an Order object which encapsulates operations on...
How to frame two for loops in list comprehension python
...ehension. (Perfectly matches the 79 character limit too (without the list call))
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MySQL remove all whitespaces from the entire column
Is there a way to remove all whitespaces from a specific column for all values?
5 Answers
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Asynchronous vs synchronous execution, what does it really mean? [closed]
...pt of doing two things at one time. The operating system simulates this by allocating slices of time to different threads.
Now, if you introduce multiple cores/processors into the mix, then things CAN actually happen at the same time. The operating system can allocate time to one thread on the firs...
How to collapse all methods in Xcode?
How to collapse all methods in a class in Xcode?
4 Answers
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Wait for all promises to resolve
...ltiple promise chains of an unknown length. I want some action to run when all the CHAINS have been processed. Is that even possible? Here is an example:
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git add all except ignoring files in .gitignore file
...roject that had none. The problem is that there are a lot of files to initially add to git with a .gitignore file, but I can't figure out how to add all files without including the files matching something in the .gitignore file.
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Breakpoints are crossed out, how can I make them valid?
...a menu entry you have discovered for yourself that toggles the skipping of all breakpoints. There is also an icon for this in the "Breakpoints" View, and there may be a hot-key defined as well, all of which you may have triggered by accident.
Take a look at the Run -> Skip All Breakpoints.
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How can I list ALL grants a user received?
I need to see all grants on an Oracle DB.
6 Answers
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What is Inversion of Control?
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The Inversion of Control (IoC) and Dependency Injection (DI) patterns are all about removing dependencies from your code.
For example, say your application has a text editor component and you want to provide spell checking. Your standard code would look something like this:
public class TextEditor ...