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What is a classpath and how do I set it?
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In python there's a folder called Lib where you can store any module to use at any time with a simple import statement. Is this different than setting the CLASSPATH environment variable to a directory for third-party java packag...
Where is the C auto keyword used?
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The auto keyword is similar to the inclusion of semicolons in Python, it was required by a previous language (B) but developers realized it was redundant because most things were auto.
I suspect it was left in to help with the transition from B to C. In short, one use is for B languag...
Argparse: Required arguments listed under “optional arguments”?
...ere is a non-optional argument, which I find very confusing. How can I get python to indicate that an argument is not optional?
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How to create a MySQL hierarchical recursive query
...tended for. The tables of a relational database are not hierarchical (like XML), but are simply a flat list. Hierarchical data has a parent-child relationship that is not naturally represented in a relational database table.
Read more
Refer the blog for more details.
EDIT:
select @pv:=category_id...
Best practice for storing and protecting private API keys in applications [closed]
...e private key string is stored in the Java class vs in the String resource XML?
– Alan
Apr 15 '16 at 16:16
2
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Cannot install packages using node package manager in Ubuntu
...ln -s /usr/bin/nodejs /usr/bin/node
alias node=nodejs
rm -r /usr/local/lib/python2.7/dist-packages/localstack/node_modules
npm install -g npm@latest || sudo npm install -g npm@latest
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How to extract the substring between two markers?
...urn an empty string if either "AAA" or "ZZZ" don't exist in your_text.
PS Python Challenge?
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What are the best practices for JavaScript error handling?
...rror handling in javascript like you do in several other languages (AFAIK: Python, Java).
For better readability (and probably better performance, even though I am not sure it has a really big impact), you should use the try / catch block mostly on the following cases :
The part of the code you w...
Add single element to array in numpy
...2 s ± 16.1 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
Using python list converting to array afterward:
d = [0]
for k in range(int(10e4)):
d.append(k)
f = np.array(d)
13.5 ms ± 277 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
Pre-allocating numpy array:
e = np.ze...
Hiding the scroll bar on an HTML page
... Only works internally within a users profile settings. Disables scrolling XML root elements and disables using arrow keys and mouse wheel to scroll web pages.
Mozilla Developer Docs on 'Overflow'
Further details about Mozilla
This is not really useful as far as I know, but it's worth noting that...