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An async/await example that causes a deadlock
...t.GetStringAsync (still within the context).
GetStringAsync returns an uncompleted Task, indicating the REST request is not complete.
GetJsonAsync awaits the Task returned by GetStringAsync. The context is captured and will be used to continue running the GetJsonAsync method later. GetJsonAsync ...
Rails respond_with: how does it work?
...rated into the third-party responders gem as of Rails 4.2 (release notes / commit dated Aug 2014). While responders is not included in Rails by default, it is a dependency of Devise, and thus available in many Rails applications.
The #respond_to instance method, however, is still a part of Rails (5...
JavaScript: What are .extend and .prototype used for?
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@meder - you should add visum comment in your answer. :)
– Manish Gupta
May 8 '15 at 11:18
9
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SQL Server indexes - ascending or descending, what difference does it make?
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This primarily matters when used with composite indexes:
CREATE INDEX ix_index ON mytable (col1, col2 DESC);
can be used for either:
SELECT *
FROM mytable
ORDER BY
col1, col2 DESC
or:
SELECT *
FROM mytable
ORDER BY
col1 DESC, col2
...
How to tell if rails is in production?
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Maven artifact and groupId naming
...k in the Maven repo, I would look for awesome-inhouse-framework-x.y.jar in com.mycompany.awesomeinhouseframework group directory. And I would find it there according to your convention.
Two simple rules work for me:
reverse-domain-packages for groupId (since such are quite unique) with all the co...
What is the purpose of `text=auto` in `.gitattributes` file?
... you're not alone.
Here's what * text=auto does in my words: when someone commits a file, Git guesses whether that file is a text file or not, and if it is, it will commit a version of the file where all CR + LF bytes are replaced with LF bytes. It doesn't directly affect what files look like in th...
How can I resize an image dynamically with CSS as the browser width/height changes?
...this, you need to add width:auto\9 for IE8.
source: http://webdesignerwall.com/tutorials/responsive-design-with-css3-media-queries
CSS:
img {
max-width: 100%;
height: auto;
width: auto\9; /* ie8 */
}
And if you want to enforce a fixed max width of the image, just place it inside a cont...
What does the star operator mean, in a function call?
...d arguments:
values = { 'a': 1, 'b': 2 }
s = sum(**values)
You can also combine:
def sum(a, b, c, d):
return a + b + c + d
values1 = (1, 2)
values2 = { 'c': 10, 'd': 15 }
s = sum(*values1, **values2)
will execute as:
s = sum(1, 2, c=10, d=15)
Also s...
Does List guarantee insertion order?
...ondly, check out the definition of the abstract data type List in any good computer science textbook. Just like Queue and Stack, a List is a well defined, predictable and well understood data structure - if the .NET implementation differed (or if it changes) a lot of software would break.
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