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Post an empty body to REST API via HttpClient
The API I'm trying to call requires that I do a POST but with an empty body. I'm new to using the WCF Web API HttpClient and I can't seem to find out the write code that would do a post with an empty body. I find references to some HttpContent.CreateEmpty() method, but I don't think that is for th...
How long is the SHA256 hash?
...(64), or even a char(64), as the length is always the same, not varying at all.
And the demo :
$hash = hash('sha256', 'hello, world!');
var_dump($hash);
Will give you :
$ php temp.php
string(64) "68e656b251e67e8358bef8483ab0d51c6619f3e7a1a9f0e75838d41ff368f728"
i.e. a string with 64 character...
Android - Center TextView Horizontally in LinearLayout
...ravity specified. Instead of placing the whole widget center what you're really trying to do is place the content in the center which can be accomplished with android:gravity="center_horizontal" and the android:layout_gravity attribute can be removed.
...
How to go up a level in the src path of a URL in HTML?
...
Here is all you need to know about relative file paths:
Starting with / returns to the root directory and starts there
Starting with ../ moves one directory backward and starts there
Starting with ../../ moves two directories backw...
Can't install RMagick 2.13.1. Can't find MagickWand.h.
When I try do install rmagick I get the following error message:
32 Answers
32
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How do I convert a NSString into a std::string?
...ou don't want non-ASCII characters in there, you can use dataUsingEncoding:allowLossyConversion: to get an NSData representation of the string with lossy encoded ASCII content, and then throw that at your std::string
share
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How is Generic Covariance & Contra-variance Implemented in C# 4.0?
...hat will become IEnumerable<out T>. That doesn't hurt type safety at all, but lets you return an IEnumerable<string> from a method declared to return IEnumerable<object> for instance.
Contravariance is harder to give concrete examples for using interfaces, but it's easy with a del...
How to handle command-line arguments in PowerShell
...ase" )
)
Inside the script you can simply
write-output $server
since all parameters become variables available in script scope.
In this example, the $server gets a default value if the script is called without it, script stops if you omit the -username parameter and asks for terminal input if...
Deep Learning（深度学习）学习笔记整理系列之（四） - 大数据 & AI - 清泛...
Deep Learning（深度学习）学习笔记整理系列之（四）Deep_Learning_Series_4Deep Learning,深度学习,笔记Deep Learning（深度学习）学习笔记整理系列zouxy09@qq.comhttp: blog.csdn.net zouxy09作者：Zouxyversion 1.0 2013-04-08原文网址：h...Deep Learning（深度学...
Deep Learning（深度学习）学习笔记整理系列之（四） - 大数据 & AI - 清泛...
Deep Learning（深度学习）学习笔记整理系列之（四）Deep_Learning_Series_4Deep Learning,深度学习,笔记Deep Learning（深度学习）学习笔记整理系列zouxy09@qq.comhttp: blog.csdn.net zouxy09作者：Zouxyversion 1.0 2013-04-08原文网址：h...Deep Learning（深度学...