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List of Delphi language features and version in which they were introduced/deprecated
...e same ABI for all calls.
Delphi 10.2 Tokyo
Support for Linux server apps (Intel 64-bit using LLVM and ARC).
Assigning a dynamic arrays to a pointer using the @ operator is only allowed when hard-casting the array.
More flexible namespace resolution of unit names
Delphi 10.1 Berlin
Nati...
How can I prevent SQL injection in PHP?
If user input is inserted without modification into an SQL query, then the application becomes vulnerable to SQL injection , like in the following example:
...
How do I adjust the anchor point of a CALayer, when Auto Layout is being used?
...make the mistake of triggering layout at the time that a view transform is applied.]
Autolayout vs. View Transforms
Autolayout does not play at all well with view transforms. The reason, as far as I can discern, is that you're not supposed to mess with the frame of a view that has a transform (oth...
Shared-memory objects in multiprocessing
...ates access to it from other processes (even over a network).
The Manager approach can be used with arbitrary Python objects, but will be slower than the equivalent using shared memory because the objects need to be serialized/deserialized and sent between processes.
There are a wealth of parallel...
When to use actors instead of messaging solutions such as WebSphere MQ or Tibco Rendezvous?
...nally RabbitMQ and Akka actually make a good pair. You can use Akka as a wrapper to RabbitMQ particularly since RabbitMQ does not help you with handling the consumption of messages and routing the messages locally (in a single JVM).
When to choose Akka
Have lots of consumers (think millions).
Nee...
Comparing Haskell's Snap and Yesod web frameworks
...es them all together and provides the powerful snaplets API that makes web apps composable and modular.
Yesod has a host of projects on hackage. Most (all?) of them are listed in the Yesod category. Some of the notable ones are yesod-core, warp, persistent, and hamlet.
The reality of Haskell web...
What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
... text processing simple by defining it such that it requires a one-to-one mapping from a string's code-units to the text's characters, thus allowing the use of the same simple algorithms as are used with ascii strings to work with other languages.
Unfortunately the wording of wchar_t's specificatio...
What is in your Mathematica tool bag? [closed]
...
I've mentioned this before, but the tool I find most useful is an application of Reap and Sow which mimics/extends the behavior of GatherBy:
SelectEquivalents[x_List,f_:Identity, g_:Identity, h_:(#2&)]:=
Reap[Sow[g[#],{f[#]}]&/@x, _, h][[2]];
This allows me to group lists by a...
CORS - What is the motivation behind introducing preflight requests?
...ght requests have nothing to do with security, and they have no bearing on applications that are being developed now, with an awareness of CORS. Rather, the preflight mechanism benefits servers that were developed without an awareness of CORS, and it functions as a sanity check between the client an...
One DbContext per web request… why?
...OTE: This answer talks about the Entity Framework's DbContext, but
it is applicable to any sort of Unit of Work implementation, such as
LINQ to SQL's DataContext, and NHibernate's ISession.
Let start by echoing Ian: Having a single DbContext for the whole application is a Bad Idea. The only si...