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What regular expression will match valid international phone numbers?
...eed to determine whether a phone number is valid before attempting to dial it. The phone call can go anywhere in the world.
...
Is there a cross-browser onload event when clicking the back button?
...t fire when the page loads as a result of a back button operation — it only fires when the page is first loaded.
15 A...
Best way to include CSS? Why use @import?
... speed standpoint, @import from a CSS file should almost never be used, as it can prevent stylesheets from being downloaded concurrently. For instance, if stylesheet A contains the text:
@import url("stylesheetB.css");
then the download of the second stylesheet may not start until the first style...
How well is Unicode supported in C++11?
...ibrary support unicode?
Terribly.
A quick scan through the library facilities that might provide Unicode support gives me this list:
Strings library
Localization library
Input/output library
Regular expressions library
I think all but the first one provide terrible support. I'll get back to i...
What is the difference between Factory and Strategy patterns?
... For example, you may have a factory that creates your business objects. It may use different strategies based on the persistence medium. If your data is stored locally in XML it would use one strategy. If the data were remote in a different database, it would use another.
...
How to detect if app is being built for device or simulator in Swift
...r flag targeting iOS Simulators. For detailed instructions on how to do to it, see @mbelsky's answer.
Original answer
If you need a static check (e.g. not a runtime if/else) you can't detect the simulator directly, but you can detect iOS on a desktop architecture like follows
#if (arch(i386) || a...
How does one write code that best utilizes the CPU cache to improve performance?
...
The cache is there to reduce the number of times the CPU would stall waiting for a memory request to be fulfilled (avoiding the memory latency), and as a second effect, possibly to reduce the overall amount of data that needs to be transfered (preserving memory bandwidth).
Techniques for avoidi...
Does opacity:0 have exactly the same effect as visibility:hidden
If so, does it effectively deprecate the visibility property?
9 Answers
9
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Sass or Compass without ruby?
Is there a way to use Sass or Compass or anything like that without Ruby?
7 Answers
7...
Disable browser's back button
... following code on your page code behind.
Page.Response.Cache.SetCacheability(HttpCacheability.NoCache)
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