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Utility classes are evil? [closed]
...s IMHO invalid and pointless to speak of a class, even though the class keyword is used. It quacks like a namespace, it walks like a namespace - it is one...
– Unslander Monica
Nov 20 '15 at 21:20
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Checking Bash exit status of several commands efficiently
... echoing the error message: let the failing command handle that. In other words, if you do:
#!/bin/sh
set -e # Use caution. eg, don't do this
command1
command2
command3
and command2 fails, while printing an error message to stderr, then it seems that you have achieved what you want. (Unles...
Eclipse, regular expression search and replace
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In search:
First and last '(' ')' depicts a group in regex
'\w' depicts words (alphanumeric+underscore)
'+' depicts one or more(ie one or more of alphanumeric+underscore)
'.' is a special character which depicts any character( ie .+ means
one or more of any character). Because this is a specia...
Difference between path.normalize and path.resolve in Node.js
...path.resolve('../../src/../src/node')
'/Users/mtilley/src/node'
In other words, path.normalize is "What is the shortest path I can take that will take me to the same place as the input", while path.resolve is "What is my destination if I take this path."
Note however that path.normalize() is much...
Can you split a stream into two streams?
...
The javadoc wording does not exclude partitioning into several streams as long as a single stream item only goes in one of these
– Thorbjørn Ravn Andersen
Aug 19 '15 at 10:44
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Facebook API - How do I get a Facebook user's profile image through the Facebook API (without requir
.../USER_ID/picture?type=SIZE
where SIZE should be replaced with one of the words
square
small
normal
large
depending on the size you want.
This call will return a URL to a single image with its size based on your chosen type parameter.
For example:
https://graph.facebook.com/USER_ID/picture?ty...
Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]
...t need to quote the variable expansions inside [[ as there is no danger of word splitting and globbing.
To prevent shellcheck's soft complaints about [[ $var ]] and [[ ! $var ]], we could use the -n option.
Rare cases
In the rare case of us having to make a distinction between "being set to an em...
Should I put #! (shebang) in Python scripts, and what form should it take?
...ws, setuptools can generate wrapper .exe scripts automatically).
In other words, if the script is in a source checkout then you will probably see #!/usr/bin/env python. If it is installed then the shebang is a path to a specific python executable such as #!/usr/local/bin/python (NOTE: you should n...
What is the purpose of the “final” keyword in C++11 for functions?
What is the purpose of the final keyword in C++11 for functions? I understand it prevents function overriding by derived classes, but if this is the case, then isn't it enough to declare as non-virtual your final functions? Is there another thing I'm missing here?
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JavaScript: Check if mouse button down?
...ution, but what if the mouse is coming from a different application say ms word and its dragging some text. How will you detect that the mouse is down?
– Shadrack B. Orina
Apr 11 '12 at 9:40
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