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Is HttpClient safe to use concurrently?
In all the examples I can find of usages of HttpClient , it is used for one off calls. But what if I have a persistent client situation, where several requests can be made concurrently? Basically, is it safe to call client.PostAsync on 2 threads at once against the same instance of HttpClient .
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Using [UIColor colorWithRed:green:blue:alpha:] doesn't work with UITableView seperatorColor?
...ple UIColor category that does the messy looking division by itself: (from http://github.com/Jon889/JPGeneral)
//.h file
@interface UIColor (JPExtras)
+ (UIColor *)colorWithR:(CGFloat)red G:(CGFloat)green B:(CGFloat)blue A:(CGFloat)alpha;
@end
//.m file
@implementation UIColor (JPExtras)
+ (UIColo...
What is “function*” in JavaScript?
...t designer.
You can find more detail on the EcmaScript working group wiki: http://wiki.ecmascript.org/doku.php?id=harmony:generators
The working group (TC-39) has general agreement that EcmaScript.next should have some kind of generator iterator proposal, but this is not final.
You shouldn't rely on...
How to add additional fields to form before submit?
... use javascript and JQuery to add some additional fields to be sent from a HTTP form using POST?
6 Answers
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Why use try {} finally {} with an empty try block?
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From http://blog.somecreativity.com/2008/04/10/the-empty-try-block-mystery/:
This methodology guards against a
Thread.Abort call interrupting the
processing. The MSDN page of
Thread.Abort says that “Unexecuted
finall...
How to tell if rails is in production?
...gt; Booting Puma
=> Rails 4.2.4 application starting in `production` on http://localhost:3000
Had Webrick in the example but some people didn't understand how changing servers would just substitute the name. Updated for clarity.
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compilation warning: no rule to process file for architecture i386
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Graphical guide for Xcode 4.x to remove this warning:
http://joytek.blogspot.tw/2011/09/xcode-4-warning-no-rule-to-process-file.html
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Properties order in Margin
...,top"/>
- or -
<object Margin="thicknessReference"/>
See here: http://msdn.microsoft.com/en-us/library/system.windows.frameworkelement.margin.aspx
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Search for selection in vim
...ello" at the end of a line, with "world" at the start of the next line).
http://vim.wikia.com/wiki/Search_for_visually_selected_text
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Difference between /res and /assets directories
...re is an explanation of each in the official android documentation:
from http://developer.android.com/tools/projects/index.html
assets/
This is empty. You can use it to store raw asset files. Files that you save here are compiled into an .apk file as-is, and the original filename is preserved. Y...