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How to change to an older version of Node.js
...nvm
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.34.0/install.sh | bash
You can find it at https://github.com/creationix/nvm
It allows you to easily install and manage multiple versions of node. Here's a snippet from the help:
Usage:
nvm install <version> Download a...
Concept behind these four lines of tricky C code
...
}
else
{
printf((char*) m);
}
}
It recursively calls main() 771 times.
In the beginning, m[0] = 7709179928849219.0, which stands for C++Suc;C. In every call, m[0] gets doubled, to "repair" last two letters. In the last call, m[0] contains ASCII char representation of C++...
.NET List Concat vs AddRange
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They have totally different semantics.
AddRange modifies the list by adding the other items to it.
Concat returns a new sequence containing the list and the other items, without modifying the list.
Choose whichever one has the semantic...
Emacs - Multiple columns one buffer
...d for getting Emacs (or indeed another editor) to show me multiple columns all pointing to the same buffer?
7 Answers
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Parallel.ForEach() vs. foreach(IEnumerable.AsParallel())
...takes the anonymous delegate, and runs multiple threads on this code in parallel for all the different items.
The second one not very useful in this scenario. In a nutshell it is intended to do a query on multiple threads, and combine the result, and give it again to the calling thread. So the code...
Swift variable decorations with “?” (question mark) and “!” (exclamation mark)
I understand that in Swift all variables must be set with a value, and that by using optionals we can set a variable to be set to nil initially.
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type object 'datetime.datetime' has no attribute 'datetime'
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Datetime is a module that allows for handling of dates, times and datetimes (all of which are datatypes). This means that datetime is both a top-level module as well as being a type within that module. This is confusing.
Your error is probably based ...
Where does this come from: -*- coding: utf-8 -*-
... the text editor. Until now, I never knew that the python interpreter actually parsed the comment if it is present on the first two lines of the file.
– umeboshi
Dec 26 '14 at 3:08
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Build android release apk on Phonegap 3.x CLI
How can I build an android app locally using the Phonegap 3.x CLI, ready to release? I check the bin folder generated inside the platforms/android directory of the project, and only has .debug APKs.
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Django import error - no module named django.conf.urls.defaults
...ement here. Just was adding to the answer. So that someone else could find all help at one place.
– Akshay Hazari
Aug 3 '17 at 8:47
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