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Delete everything in a MongoDB database
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Use with caution: if you're in a sharded environment using wiredTiger and you have no user database and you invoke dropDatabase, the database will be deleted and could re-appear as primary on a different shard when new records are added.
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Why does Math.Round(2.5) return 2 instead of 3?
...age - it doesn't decide how Math.Round is implemented.
And secondly, no - if you read the docs, you'll see that the default rounding is "round to even" (banker's rounding):
Return ValueType: System.DoubleThe integer nearest a. If the
fractional component of a is halfway
between two integers...
C# constructor execution order
...the chain in this class are executed (note that there can be more than one if they're chained with Foo() : this(...) etc
Note that in Java, the base class is initialized before variable initializers are run. If you ever port any code, this is an important difference to know about :)
I have a page...
What are Maven goals and phases and what is their difference?
What is the difference/relation between Maven goals and phases? How they are related to each other?
8 Answers
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What's the difference between a POST and a PUT HTTP REQUEST?
...seem to be sending data to the server inside the body, so what makes them different?
17 Answers
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How to execute shell command in Javascript
...og('stdout: ' + stdout);
console.log('stderr: ' + stderr);
if (error !== null) {
console.log('exec error: ' + error);
}
});
child();
Hope this helps!
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Emacs bulk indent for Python
Working with Python in Emacs if I want to add a try/except to a block of code, I often find that I am having to indent the whole block, line by line. In Emacs, how do you indent the whole block at once.
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What is the best way to get the count/length/size of an iterator?
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If you've just got the iterator then that's what you'll have to do - it doesn't know how many items it's got left to iterate over, so you can't query it for that result. There are utility methods that will seem to do this (su...
Create subdomains on the fly with .htaccess (PHP)
...DNS server *.website.com
Then in your vhost container you will need to specify the wildcard as well *.website.com - This is done in the ServerAlias DOCs
Then extract and verify the subdomain in PHP and display the appropriate data
The long version
1. Create a wildcard DNS entry
In your DNS setti...
In git how is fetch different than pull and how is merge different than rebase?
...ch and additionally merge the changes into your local branch.
What's the difference? pull updates you local branch with changes from the pulled branch. A fetch does not advance your local branch.
merge vs rebase
Given the following history:
C---D---E local
/
A---B---F---G...