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How does data binding work in AngularJS?
...has an inconsistent view of the world. This is a very similar problem to thread locking, which JavaScript avoids since each callback executes exclusively and to completion. Change events break this since setters can have far-reaching consequences which are not intended and non obvious, which creates...
Haskell: Where vs. Let
... by Where vs. Let . They both seem to provide a similar purpose. I have read a few comparisons between Where vs. Let but I am having trouble discerning when to use each. Could someone please provide some context or perhaps a few examples that demonstrate when to use one over the other?
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How do I exit the Vim editor?
...:quit!)
:wq to write and quit
:wq! to write and quit even if file has only read permission (if file does not have write permission: force write)
:x to write and quit (similar to :wq, but only write if there are changes)
:exit to write and exit (same as :x)
:qa to quit all (short for :quitall)
:cq t...
How are POST and GET variables handled in Python?
...n Python, these functions would be os.getenv('QUERY_STRING') and sys.stdin.read(). Remember to import os and sys modules.
We have to be careful with the word "CGI" here, especially when talking about two languages and their commonalities when interfacing with a web server. 1. CGI, as a protocol, de...
mkdir's “-p” option
...
Allows one to list the contents of a directory. It does not allow the reading of files.
i (insert)
Allows one to create new files in a directory or copy new files to a directory.
d (delete)
Allows one to remove files and sub-directories from a directory.
a (administer)
Allows one...
Should I put #! (shebang) in Python scripts, and what form should it take?
...ncrete advantage to including it besides taste: it makes clear to a future reader of the file that they're reading an executable script, rather than a file that's meant to be imported. Similarly to public/private access control modifiers in languages that have them, shebangs are useful as documentat...
Printing object properties in Powershell
...essRightType, AccessRuleType,...
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Use ConvertTo-Json for depth and readable "serialization"
I do not necessary recommend saving objects using JSON (use Export-Clixml instead).
However, you can get a more or less readable output from ConvertTo-Json, which also allows you to specify depth.
N...
RSpec: describe, context, feature, scenario?
...ou can use them interchangeably, the only difference is how your spec file reads. There is no difference in test output for example. The RSpec book says:
"We tend to use describe() for things and context() for context".
Personally I like to use describe, but I can see why people prefer context...
What is the difference between URI, URL and URN? [duplicate]
What's the difference between an URI, URL and URN? I have read a lot of sites (even Wikipedia) but I don't understand it.
4...
How do I write unit tests in PHP? [closed]
I've read everywhere about how great they are, but for some reason I can't seem to figure out how exactly I'm supposed to test something. Could someone perhaps post a piece of example code and how they would test it? If it's not too much trouble :)
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