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Error-Handling in Swift-Language
...ry? summonDefaultDragon() else { ... }
Finally, you can decide that you know that error will not actually occur (e.g. because you have already checked are prerequisites) and use try! keyword:
let dragon = try! summonDefaultDragon()
If the function actually throws an error, then you'll get a run...
How do I expand a tuple into variadic template function's arguments?
...
all the tr1 stuff can get taken out now with c++11
– Ryan Haining
Sep 12 '13 at 4:58
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show 1 more co...
How does one generate a random number in Apple's Swift language?
...n one's own program? Or is there a library that does this that we can use now?
25 Answers
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CASCADE DELETE just once
...ked for deletion to prevent infinite loops. Please test it out and let me know how it works for you. Note: It's a little slow.
I call it like so:
select delete_cascade('public','my_table','1');
create or replace function delete_cascade(p_schema varchar, p_table varchar, p_key varchar, p_recursion v...
ExpressJS How to structure an application?
... be distracted by third party matches
Use simple and obvious naming
npm now seems to require all-lowercase package names. I find this mostly terrible but I must follow the herd, thus filenames should use kebab-case even though the variable name for that in JavaScript must be camelCase because - i...
Why doesn't Java allow generic subclasses of Throwable?
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Oh, now I get it. My solution would cause problems with RuntimeExceptions, which don't have to be declared. So if SomeExc is a subclass of RuntimeException, I could throw and explicitly catch SomeExc<Integer>, but maybe som...
What is a difference between
... arrays are what we call reifiable types. This means that at runtime Java knows that this array was actually instantiated as an array of integers which simply happens to be accessed through a reference of type Number[].
So, as you can see, one thing is the actual type of the object, and another thin...
Custom Adapter for List View
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I know this has already been answered... but I wanted to give a more complete example.
In my example, the ListActivity that will display our custom ListView is called OptionsActivity, because in my project this Activity is goin...
Why would I ever use push_back instead of emplace_back?
...mplace_back miss the full picture.
Last year, I gave a presentation at C++Now on Type Deduction in C++14. I start talking about push_back vs. emplace_back at 13:49, but there is useful information that provides some supporting evidence prior to that.
The real primary difference has to do with impl...
Can local storage ever be considered secure? [closed]
...ll but one of these concerns does not apply to the WebCrypto API, which is now reasonably well supported.
For an offline app, you must still design and implement a secure keystore.
Aside: If you are using Node.js, use the builtin crypto API.
Native-Javascript Cryptography (pre-WebCrypto)
I presu...