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What does an exclamation mark mean in the Swift language?
...?
As far as I can work out (this is very new to me, too)...
The term "wrapped" implies we should think of an Optional variable as a present, wrapped in shiny paper, which might (sadly!) be empty.
When "wrapped", the value of an Optional variable is an enum with two possible values (a little like...
How exactly does the “Specific Version” property of an assembly reference work in Visual Studio?
...out to learn as much as possible about how the property works. Even SO, it appears to me, does not have all the answers, so here is my attempt at self-answering the question:
...
Python __str__ versus __unicode__
...s override __unicode__() more frequently than __str__() but it doesn't appear to be consistent. Are there specific rules when it is better to implement one versus the other? Is it necessary/good practice to implement both?
...
What is the best way to detect a mobile device?
...s note: user agent detection is not a recommended technique for modern web apps. See the comments below this answer for confirmation of this fact. It is suggested to use one of the other answers using feature detection and/or media queries.
Instead of using jQuery you can use simple JavaScript to...
SQL Server Script to create a new user
...eges).
However, if you are going to be accessing the SQL Server from an application, then you will want to set the server up for "Mixed Mode" (both Windows and SQL logins) and create a Login as shown above. You'll then "GRANT" priviliges to that SQL Login based on what is needed for your app. S...
What are the benefits of using C# vs F# or F# vs C#? [closed]
...nt
The advantages of C# are that it's often more accurate to "imperative"-applications (User-interface, imperative algorithms) than a functional programming language, that the .NET-Framework it uses is designed imperatively and that it's more widespread.
Furthermore you can have F# and C# together...
Detecting Unsaved Changes
...have a requirement to implement an "Unsaved Changes" prompt in an ASP .Net application. If a user modifies controls on a web form, and attempts to navigate away before saving, a prompt should appear warning them that they have unsaved changes, and give them the option to cancel and stay on the curr...
How can I make XSLT work in chrome?
...em on localhost.
Running around the Internet looking for the answer and I approve that adding --allow-file-access-from-files works. I work on Mac, so for me I had to go through terminal sudo /Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --allow-file-access-from-files and enter your...
Comparison of Android networking libraries: OkHTTP, Retrofit, and Volley [closed]
... to batch callbacks to the main thread to
reduce context switching.
Volley apparently has futures, too. Check out RequestFuture if you’re
interested.
If you’re dealing with high-resolution compressed images, Volley is
the only solution here that works well.
Volley can be used with Okhttp (New ve...
In Visual Studio C++, what are the memory allocation representations?
...habit to just inject a NOP before or after the BRK; oh in some cases, some apps would try to do checksum of the block of addresses, so I'd balance out the JMP $XYZW with INT3 + [some-hex] grin
– HidekiAI
Feb 5 '18 at 13:45
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