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Are Exceptions in C++ really slow
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The main model used today for exceptions (Itanium ABI, VC++ 64 bits) is the Zero-Cost model exceptions.
The idea is that instead of losing time by setting up a guard and explicitly checking for the presence of exceptions everywhere, the compiler generates a side tab...
Checking if a variable is an integer
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edited Feb 12 at 8:06
Purplejacket
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Is there a difference between foreach and map?
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Different.
foreach iterates over a list and applies some operation with side effects to each list member (such as saving each one to the database for example)
map iterates over a list, transforms each member of that list, and returns another l...
Shorter syntax for casting from a List to a List?
I know its possible to cast a list of items from one type to another (given that your object has a public static explicit operator method to do the casting) one at a time as follows:
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Uncaught TypeError: Cannot read property 'msie' of undefined - jQuery tools
...hod has been deprecated since jQuery 1.3 and is removed in 1.9. If needed, it is available as part of the jQuery Migrate plugin. We recommend using feature detection with a library such as Modernizr.
— jQuery Core 1.9 Upgrade Guide.
As stated in the Upgrade Guide you can try using the jQuery Migr...
cannot find zip-align when publishing app
...SDK Platform-tools (20 which was also released today). I got an APK out of it, but if I tried to upload it to Google Play I got an error complaining that it is not zip aligned.
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How is Python's List Implemented?
Is it a linked list, an array? I searched around and only found people guessing. My C knowledge isn't good enough to look at the source code.
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What does @media screen and (max-width: 1024px) mean in CSS?
I found this piece of code in a CSS file I inherited, but I can't make any sense out of it:
9 Answers
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Fastest way to check if a string is JSON in PHP?
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edited Jun 21 '12 at 16:10
answered May 18 '11 at 8:20
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How do I send a cross-domain POST request via JavaScript?
...nuing everyone should read and understand the html5rocks tutorial on CORS. It is easy to understand and very clear.
If you control the server being POSTed, simply leverage the "Cross-Origin Resource Sharing standard" by setting response headers on the server. This answer is discussed in other answ...