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CORS - How do 'preflight' an httprequest?
...ermissions to make the actual request. Your preflight response needs to acknowledge these headers in order for the actual request to work.
For example, suppose the browser makes a request with the following headers:
Origin: http://yourdomain.com
Access-Control-Request-Method: POST
Access-Control-R...
What's the difference between a single precision and double precision floating point operation?
...o represent floating-point values.
Most computers use a standard format known as the IEEE floating-point format.
The IEEE double-precision format actually has more than twice as many bits of precision as the single-precision format, as well as a much greater range.
From the IEEE standard for f...
What is the difference between IQueryable and IEnumerable?
...es a real practical difference in use.
– Ishmael Smyrnow
Jun 30 '11 at 16:29
2
Instead of taking ...
The difference between Classes, Objects, and Instances
...s are created). And it says that, the objects of the class are instances. Now please someone tell me what is the differences between object and instance?Does this mean that object don't really exist in context of programming and instance represents object in it?
– Pranjut
...
How to get svn remote repository URL?
...
As of Subversion 1.9 you can now request a specific item from svn info.
svn info --show-item=url
This will output only the remote url. To get rid of the newline at the end, add this extra option:
svn info --show-item=url --no-newline
...
Returning 'IList' vs 'ICollection' vs 'Collection'
...ly you should return a type that is as general as possible, i.e. one that knows just enough of the returned data that the consumer needs to use. That way you have greater freedom to change the implementation of the API, without breaking the code that is using it.
Consider also the IEnumerable<T&...
Database Design for Tagging
...question and then serialize/de-serialize them on the fly? I would love to know more about it and maybe see some code snippets. I've been looking around and having found any details, is there a link where you've already done this before I ask the question on META?
– Marston A.
...
How do I find out which keystore was used to sign an app?
...int (MD5): B3:4F:BE:07:AA:78:24:DC:CA:92:36:FF:AE:8C:17:DB
Voila! we can now determined the apk has been signed with this keystore, and with the alias 'android_key'.
Keytool is part of Java, so make sure your PATH has Java installation dir in it.
...
What's the strangest corner case you've seen in C# or .NET? [closed]
...ll is redirected to the proxy (MyFunnyProxyAttribute), which returns null. Now go and wash your eyes!
share
edited Nov 25 '09 at 12:03
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How can I make the computer beep in C#?
...rnal speakers, which can't always be counted on. It's definitely good to know these, though!
– a_hardin
Dec 1 '08 at 14:59
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