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How do I manage MongoDB connections in a Node.js web application?
...there are multiple database.. should i open a connection for each database all together. If not, Is it OK to open and close when required?
– Aman Gupta
Oct 25 '16 at 14:19
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How do I change the default port (9000) that Play uses when I execute the “run” command?
...used by the play framework in development mode when issueing the "run" command on the play console.
21 Answers
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How can I fix WebStorm warning “Unresolved function or method” for “require” (Firefox Add-on SDK)
... edited Apr 25 at 9:45
MARSHMALLOW
1,24022 gold badges88 silver badges2323 bronze badges
answered Nov 22 '13 at 15:10
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I can't install python-ldap
...n order to compile the Python module. If you're on Ubuntu, the package is called libldap2-dev.
Debian/Ubuntu:
sudo apt-get install libsasl2-dev python-dev libldap2-dev libssl-dev
RedHat/CentOS:
sudo yum install python-devel openldap-devel
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Detect HTTP or HTTPS then force HTTPS in JavaScript
Is there any way to detect HTTP or HTTPS and then force usage of HTTPS with JavaScript?
13 Answers
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How to auto-generate a C# class file from a JSON string [closed]
...The web tool json2csharp also does not require installing anything.
Pros and Cons:
jsonclassgenerator converts to PascalCase but the others do not.
app.quicktype.io has some logic to recognize dictionaries and handle JSON properties whose names are invalid c# identifiers.
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What would be C++ limitations compared C language? [closed]
...uestion which asks about a generics library for C - the questioner specifically states that they do not want to use C++.
C is a complete programming language. C is not an arbitrary subset of C++. C is not a subset of C++ at all.
This is valid C:
foo_t* foo = malloc ( sizeof(foo_t) );
To make ...
What does the @ symbol before a variable name mean in C#? [duplicate]
I understand that the @ symbol can be used before a string literal to change how the compiler parses the string. But what does it mean when a variable name is prefixed with the @ symbol?
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Perform an action in every sub-directory using Bash
... # your processing here
fi
done
Or, if your action is a single command, this is more concise:
for D in *; do [ -d "${D}" ] && my_command; done
Or an even more concise version (thanks @enzotib). Note that in this version each value of D will have a trailing slash:
for D in */; do ...
Python ValueError: too many values to unpack [duplicate]
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self.materials is a dict and by default you are iterating over just the keys (which are strings).
Since self.materials has more than two keys*, they can't be unpacked into the tuple "k, m", hence the ValueError exception is raised.
In Python 2.x, t...