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App.Config Transformation for projects which are not Web Projects in Visual Studio?
For Visual Studio 2010 Web based application we have Config Transformation features by which we can maintain multiple configuration files for different environments. But the same feature is not available for App.Config files for Windows Services/WinForms or Console Application.
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Create a submodule repository from a folder and keep its git commit history
...t repository A> so history for this folder is only there once.
This is based on Removing sensitive data from github.
Go to a new folder and
git clone <git repository A url>
cd <git repository A directory>
git filter-branch --force --index-filter 'git rm --cached --ignore-unmatch &l...
Is there a way to pass optional parameters to a function?
... a function while calling it and in the function definition have some code based on "only if the optional parameter is passed"
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What is the meaning of “POSIX”?
...f Android O: Is Android POSIX-compatible?
Bonus level
The Linux Standard Base further extends POSIX.
Use the non-frames indexes, they are much more readable and searchable: http://pubs.opengroup.org/onlinepubs/9699919799/nfindex.html
Get a full zipped version of the HTML pages for grepping: Whe...
How to make an array of arrays in Java
...s and there are specialized Collections for different functionality (index-based lookup, sorting, uniqueness, FIFO-access, concurrency etc.).
While it's of course good and important to know about Arrays and their usage, in most cases using Collections makes APIs a lot more manageable (which is why ...
How to check file MIME type with javascript before upload?
...e as fallback
break;
}
Accept or reject file uploads as you like based on the MIME types expected.
Demo
Here is a working demo for local files and remote files (I had to bypass CORS just for this demo). Open the snippet, run it, and you should see three remote images of different types...
SQL - many-to-many table primary key
...to be able to be retrieved quickly.
In addition, the vast majority of database tables are read far more often than written. That makes anything you do on the select side far more relevant than anything on the insert side.
s...
Does the join order matter in SQL?
...OIN. Does it work like that first the query will Filter the records on the base of INNER JOIN and then will apply LEFT JOIN to the Filtered records?
– Muhammad Babar
Feb 12 '15 at 13:09
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Mongodb Explain for Aggregation framework
...ious types of reports or analysis on documents in one or more collections. Based on the idea of a pipeline. We take input from a MongoDB collection and pass the documents from that collection through one or more stages, each of which performs a different operation on it's inputs. Each stage takes as...
Why is NaN not equal to NaN? [duplicate]
... people wanted to use NaN to represent missing values and put them in hash-based containers, they couldn't do it.
If the committee foresaw future use cases, and considered them important enough, they could have gone for the more verbose !(x<x & x>x) instead of x!=x as a test for NaN. How...