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When to use ref and when it is not necessary in C#
...hod's probably trying to do too much. That's not always the case (TryParse etc are the canonical examples of reasonable use of out) but using ref/out should be a relative rarity.
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Why CancellationToken is separate from CancellationTokenSource?
... many scenarios (such as deep library stacks, parallel computation, async, etc) and thus was designed with many complex use cases in mind. It is a design intended to encourage successful patterns and discourage anti-patterns without sacrificing performance.
If the door was left open for misbehav...
Installing multiple instances of the same windows service on a server
...nformation provided by the service installer. F.e. description, logon type etc. is ignored
– Noel Widmer
Aug 5 '16 at 11:43
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Can ordered list produce result that looks like 1.1, 1.2, 1.3 (instead of just 1, 2, 3, …) with css?
...he following style sheet numbers nested list items as "1", "1.1", "1.1.1", etc.
OL { counter-reset: item }
LI { display: block }
LI:before { content: counters(item, ".") " "; counter-increment: item }
Example
ol { counter-reset: item }
li{ display: block }
li:before { content: counters(i...
What is “vectorization”?
...GE
Vectorization describes the absence of any explicit looping, indexing, etc., in the code - these things are taking place, of course, just “behind the scenes” in optimized, pre-compiled C code. Vectorized code has many advantages, among which are:
vectorized code is more concise and easier ...
PHP Redirect with POST data
...o go to Page B is probably to generate a fingerprint or add an order code, etc. Without these then the 3rd party page C should fail, or at worst, when the result comes back to us from the 3rd party without an order code, we should not accept the order. This is overall a good solution if JS is accept...
Difference between as.POSIXct/as.POSIXlt and strptime for converting character vectors to POSIXct/PO
...nd POSIXlt, which stores a list of day, month, year, hour, minute, second, etc.
strptime is a function to directly convert character vectors (of a variety of formats) to POSIXlt format.
as.POSIXlt converts a variety of data types to POSIXlt. It tries to be intelligent and do the sensible thing - i...
Questions every good Java/Java EE Developer should be able to answer? [closed]
... you are able to reason about classes, objects, inheritance, polymorphism, etc. It's actually much better than a candidate who knows the answer by heart but doesn't understand why
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Embedding ads on Android app?
...roid in particular, you should try out Millennial, AdMob, JumpTap, MobFox, etc. The problem is integrating all the different SDKs is a giant pain and doesn't really provide you much control.
Ads are important, but don't forget the importance of upselling your paid application and understanding wh...
decimal vs double! - Which one should I use and when? [duplicate]
... errors will quickly accumulate large enough to creep into the 15, 14, 13, etc. digits. Rounding to "cents" requires at least one digit of full accuracy after cents digit, but really you should reserve 4 or 5 to insulate from cumulative arithmetic errors, which you CANNOT allow to corrupt the hundr...