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What is the difference between object keys with quotes and without quotes?
...d when the property name is a valid identifier name.
Note that reserved words are allowed to be used as unquoted property names in ES5. However, for backwards compatibility with ES3, I’d suggest quoting them anyway.
I also made a tool that will tell you if any given property name can be used w...
Why prefer two's complement over sign-and-magnitude for signed numbers?
...eight bits)
It's just a matter of looking at the sign bit of the smaller word and repeating it until it pads the width of the bigger word.
With your method you would need to clear the existing bit, which is an extra operation in addition to padding:
0001 (one, in four bits)
00000001 (one, in...
Formatting text in a TextBlock
...gt;italic</Italic> and <Underline>underlined</Underline> words.
</TextBlock>
I think it is worth noting, that those elements are in fact just shorthands for Span elements with various properties set (i.e.: for Bold, the FontWeight property is set to FontWeights.Bold).
Th...
The term “Context” in programming? [closed]
I have been programming for some months now and a frequently used word is "context" in classes. Like ServletContext (Java), Activity (Android), Service (Java, Android), NSManagedContext (Objective-C, iOS).
...
Actual meaning of 'shell=True' in subprocess
...wn an intermediate shell process, and tell it to run the command. In other words, using an intermediate shell means that variables, glob patterns, and other special shell features in the command string are processed before the command is run. Here, in the example, $HOME was processed before the echo...
How can I check if a program exists from a Bash script?
...gular commands. Or...
type <the_command> # To check built-ins and keywords
Explanation
Avoid which. Not only is it an external process you're launching for doing very little (meaning builtins like hash, type or command are way cheaper), you can also rely on the builtins to actually do what yo...
Code Wrap IntelliJ?
How would be possible to assign a shortcut for word wrap like as sublime text do? i.e. if the code line is too long it should be automatically break to the next line. wikipedia.org.org/Word_wrap
...
How can I safely create a nested directory?
...tsError:
# directory already exists
pass
...and by allowing a keyword argument to os.makedirs called exist_ok (in 3.2+).
os.makedirs("path/to/directory", exist_ok=True) # succeeds even if directory exists.
share...
What is the difference between Left, Right, Outer and Inner Joins?
...e in either table if there is no match.
Often you see will the OUTER keyword omitted from the syntax. Instead it will just be "LEFT JOIN", "RIGHT JOIN", or "FULL JOIN". This is done because INNER and CROSS joins have no meaning with respect to LEFT, RIGHT, or FULL, and so these are sufficient b...
Android: alternate layout xml for landscape mode
...
should i have to keep the name layout-land or any other word @marapet
– Vamsi Pavan Mahesh
Jan 12 '14 at 7:30
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