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Should import statements always be at the top of a module?
...quite fast, but not instant. This means that:
Putting the imports at the top of the module is fine, because it's a trivial cost that's only paid once.
Putting the imports within a function will cause calls to that function to take longer.
So if you care about efficiency, put the imports at the t...
Immutable vs Unmodifiable collection
...pper around a modifiable collection which other code may still have access to. So while you can't make any changes to it if you only have a reference to the unmodifiable collection, you can't rely on the contents not changing.
An immutable collection guarantees that nothing can change the collectio...
What is the difference between localStorage, sessionStorage, session and cookies?
What are the technical pros and cons of localStorage, sessionStorage, session and cookies, and when would I use one over the other?
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Is Java “pass-by-reference” or “pass-by-value”?
...g aDog = new Dog("Max");
Dog oldDog = aDog;
// we pass the object to foo
foo(aDog);
// aDog variable is still pointing to the "Max" dog when foo(...) returns
aDog.getName().equals("Max"); // true
aDog.getName().equals("Fifi"); // false
aDog == oldDog; // true
}
public s...
Importing CommonCrypto in a Swift framework
How do you import CommonCrypto in a Swift framework for iOS?
16 Answers
16
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How can I use pointers in Java?
... much a potential error and may result in losing the object that it points to.
The Java system will throw an exception (OutOfMemoryError) when you call new and the allocator cannot allocate the requested cell. This is very rare and usually results from run-away recursion.
Note that, from a languag...
How to use gitignore command in git
...e pushed my branch on github and it pushed all the library and documents into the github. Now what can I do and how can I use gitignore command to avoid the same mistake again.
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Add a prefix to all Flask routes
I have a prefix that I want to add to every route. Right now I add a constant to the route at every definition. Is there a way to do this automatically?
...
Browser doesn't scale below 400px?
I'm working on putting together a liquid style-sheet and it works wonderful. One thing that I've noticed is that my browser window in Chrome won't resize below 400px it just gets stuck there and in FF as I scale down it it just stops at around 400px and then pops a horizontal scroll bar.
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How to list all tags along with the full message in git?
I want git to list all tags along with the full annotation or commit message. Something like this is close:
8 Answers
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