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About Java cloneable
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Cloning invokes an extra-linguistic way of constructing objects - without constructors.
Cloning requires you to treat somehow with CloneNotSupportedException - or to bother client code for treating it.
Benefits are small - you just don't have ...
Test if remote TCP port is open from a shell script
...ard with alpine linux and ubuntu both. probably others. no need to install extra when you're remoted in and can't. thanks for this! I might add, nc host port -w 2 && echo it works
– std''OrgnlDave
Apr 10 '17 at 14:34
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SASS - use variables across multiple files
I would like to keep one central .scss file that stores all SASS variable definitions for a project.
6 Answers
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Best way to create an empty object in JSON with PHP?
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Well, json_encode() simply returns a string from a PHP array/object/etc. You can achieve the same effect much more efficiently by doing:
$json = '{}';
There's really no point in using a function to accomplish this.
UPDATE
As per your comment updates, you cou...
Custom attributes - Yea or nay?
...om attributes in their HTML tags, mainly for the purpose of embedding some extra bits of data for use in javascript code.
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What's the difference between a Python module and a Python package?
...stem in the reference documentation: It’s important to keep in mind that all packages are modules.
– Martijn Pieters♦
Apr 23 '18 at 21:42
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Java GUI frameworks. What to choose? Swing, SWT, AWT, SwingX, JGoodies, JavaFX, Apache Pivot? [close
...course you can integrate your custom controls as well, but that takes some extra effort.
share
edited Sep 9 '11 at 12:50
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What are all the common undefined behaviours that a C++ programmer should know about? [closed]
...volatile or sig_atomic_t at the receipt of a signal
Attempting to modify a string literal or any other const object during its lifetime
Concatenating a narrow with a wide string literal during preprocessing
Function and Template
Not returning a value from a value-returning function (directly or by...
Does Redis persist data?
...operation can only be performed if you have enough free RAM (the amount of extra RAM is equal to the size of redis DB)
N.B.: BGSAVE RAM requirement is a real problem, because redis continues to work up until there is no more RAM to run in, but it stops saving data to HDD much earlier (at approx. ...
Can't pickle when using multiprocessing Pool.map()
...nsider it "easy" or not;-) is to add the infrastructure to your program to allow such methods to be pickled, registering it with the copy_reg standard library method.
For example, Steven Bethard's contribution to this thread (towards the end of the thread) shows one perfectly workable approach to a...