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capturing self strongly in this block is likely to lead to a retain cycle
...h with unrecognized selector to a trash which is contains vcToGo_ variable now. Try to control it.
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How to make a chain of function decorators?
... #Python's functions are objects
Functions references
Okay, still here? Now the fun part...
You’ve seen that functions are objects. Therefore, functions:
can be assigned to a variable
can be defined in another function
That means that a function can return another function.
def getTalk(ki...
String is immutable. What exactly is the meaning? [duplicate]
...efore coming to any conclusion.
This is how String works:
String str = "knowledge";
This, as usual, creates a string containing "knowledge" and assigns it a reference str. Simple enough? Lets perform some more functions:
String s = str; // assigns a new reference to the same string "knowle...
What are detached, persistent and transient objects in hibernate?
...ng it with a Session:
Long id = (Long) session.save(person);
// person is now in a persistent state
Now, if we close the Hibernate Session, the persistent instance will become a detached instance: it isn't attached to a Session anymore (but can still be modified and reattached to a new Session la...
How would Git handle a SHA-1 collision on a blob?
...The question of using SHA-256 is regularly mentioned, but not act upon for now (2012).
Note: starting 2018 and Git 2.19, the code is being refactored to use SHA-256.
Note (Humor): you can force a commit to a particular SHA1 prefix, with the project gitbrute from Brad Fitzpatrick (bradfitz).
g...
Doing a cleanup action just before Node.js exits
...r-LucGendreau where does this specific code go?
– hownowbrowncow
Mar 28 '16 at 20:04
11
I've foun...
Is there a quicker / better way to clear the iPhone Simulator cache than deleting its directory?
...o the Keyboard Shortcut:. (I use command-period)
Click the Add button.
Now, while in your iOS Simulator, you can simply use your new shortcut key to reset.
If the Simulator doesn't appear in the drop down list:
In a Finder window, go to your Applications folder.
Right-click Xcode and choose...
How do I edit an incorrect commit message in git ( that I've pushed )?
...
good answer. Do you know if you are now able to change already pushed commit messages in newer versions of git? Has anything changed since this was posted in '09?
– David West
Feb 5 '14 at 15:09
...
How to free memory in Java?
...s.
Not recommended.
Edit: I wrote the original response in 2009. It's now 2015.
Garbage collectors have gotten steadily better in the ~20 years Java's been around. At this point, if you're manually calling the garbage collector, you may want to consider other approaches:
If you're forcing G...
Create a devise user from Ruby console
...e, make sure you are setting the confirmed_at value to something like Time.now while creating.
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