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Design patterns or best practices for shell scripts [closed]
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I wrote quite complex shell scripts and my first suggestion is "don't". The reason is that is fairly easy to make a small mistake that hinders your script, or even make it dangerous.
That said, I don't have other resources to pass you but my personal experienc...
PHP_SELF vs PATH_INFO vs SCRIPT_NAME vs REQUEST_URI
...SELF into SCRIPT_FILENAME + PATH_INFO
Server performs alias resolution and converts the entire url path to a system file path to get SCRIPT_FILENAME
Resulting script file may include others, where __FILE__ refers to the path to the current file
...
Fixed point vs Floating point number
I just can't understand fixed point and floating point numbers due to hard to read definitions about them all over Google. But none that I have read provide a simple enough explanation of what they really are. Can I get a plain definition with example?
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What's the standard way to work with dates and times in Scala? Should I use Java types or there are
... immutable by default, have a much richer and nicer API, and
can easily be converted to Java's Date and Calendar classes when necessary.
This project provides a thin layer of convenience around the Joda Time
libraries, making them more idiomatic to use within Scala.
(copied from https://github.com...
Source code highlighting in LaTeX
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This is a package which converts source code to TeX and LaTeX with syntax highlighting. It is possible to add custom programming language definitions easily.
Highlight supports 100 programming languages and includes 50 colour themes. It features ...
Java: Class.this
...ble!";
}
}
As you can see, when the compiler takes an inner class it converts it to an outer class (this was a design decision made a LONG time ago so that VMs did not need to be changed to understand inner classes).
When a non-static inner class is made it needs a reference to the parent so ...
Compare two DataFrames and output their differences side-by-side
...ny(df1.dtypes != df2.dtypes):
"Data Types are different, trying to convert"
df2 = df2.astype(df1.dtypes)
if df1.equals(df2):
return None
else:
# need to account for np.nan != np.nan returning True
diff_mask = (df1 != df2) & ~(df1.isnull() & df2...
What is the purpose of Android's tag in XML layouts?
... Romain Guy's post on the <merge /> tag, but I still don't understand how it's useful. Is it a sort-of replacement of the <Frame /> tag, or is it used like so:
...
What is the difference between inversedBy and mappedBy?
I am developing my application using Zend Framework 2 and Doctrine 2.
4 Answers
4
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What is the most efficient way to deep clone an object in JavaScript?
...tring representation of the date in ISO format, which JSON.parse() doesn't convert back to a Date object. See this answer for more details.
Additionally, please note that, in Chrome 65 at least, native cloning is not the way to go. According to JSPerf, performing native cloning by creating a new fu...