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MongoDB Aggregation: How to get total records count?
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My life is complete now, I can die happy
– Jack
Jun 2 '18 at 18:18
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dynamically add and remove view to viewpager
(I figured out a solution - please see my post in the Answer section below.)
8 Answers
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Throw away local commits in Git
Due to some bad cherry-picking, my local Git repository is currently five commits ahead of the origin, and not in a good state. I want to get rid of all these commits and start over again.
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Reading and writing binary file
...input( "C:\\Final.gif", std::ios::binary );
std::ofstream output( "C:\\myfile.gif", std::ios::binary );
std::copy(
std::istreambuf_iterator<char>(input),
std::istreambuf_iterator<char>( ),
std::ostreambuf_iterator<char>(output));
}
If you need t...
Rails - Could not find a JavaScript runtime?
I created a new Rails project using rails 3.1.0.rc4 on my local machine but when I try to start the server I get:
Could not find a JavaScript runtime. See here for a list of available runtimes. ( ExecJS::RuntimeUnavailable )
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Check Whether a User Exists
... @WillSheppard : At a general level boolean handling in bash is in my opinion less than clear and I typically avoid implicit boolean inferences in my code. The following make interesting reading and interestingly both favour 0 = true and <not 0> = false for bash purposes, and while no...
How can I compare two dates in PHP?
...ould'nt do this with PHP.
A database should know, what day is today.( use MySQL->NOW() for example ), so it will be very easy to compare within the Query and return the result, without any problems depending on the used Date-Types
SELECT IF(expireDate < NOW(),TRUE,FALSE) as isExpired FROM ta...
Creating a UIImage from a UIColor to use as a background image for UIButton [duplicate]
...se this to create an image of certain dimensions? How do I do it? Sorry if my question, appears very naive.. :-/
– Shyam
Jun 9 '17 at 10:43
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Python pip install fails: invalid command egg_info
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For some reason I had to run this twice (in my virtual env I had distribute 0.6.49 and setuptools 0.6c11) and then I could install the latest version of pip without problems.
– glarrain
Dec 2 '13 at 21:53
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Currency formatting in Python
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my format needed some customization, but that's OK because I was able to do that with this solution.
– DonkeyKong
Jul 24 '18 at 21:54
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