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How to use mod operator in bash?
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If someone needs this for mathematical operations, note that modulo operation with negative numbers in bash returns only remainder, not mathematical modulo result. This means, that while mathematically -12 mod 10 is 8, bash...
Animate a custom Dialog
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To start with, the most important thing — I probably had it working 5 different ways today but couldn't tell because... If your devices animation settings are set to "No Animations" (Settings → Display → Animation) then the dialogs won't be animated no matter what you do!
The following is a...
MySQL Fire Trigger for both Insert and Update
...cedure.html (which includes some examples) and asking your own question(s) if needed.
– derobert
Jul 1 '11 at 5:21
2
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Post JSON using Python Requests
...thon.org/pypi/requests), the "json" parameter is supported. No need to specify "Content-Type". So the shorter version:
requests.post('http://httpbin.org/post', json={'test': 'cheers'})
share
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imp...
What does the `forall` keyword in Haskell/GHC do?
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OK, I got my six hours and can now decode your answer. :) Between you and Norman I got exactly the kind of answer I was looking for. Thanks.
– JUST MY correct OPINION
Jun 19 '10 at 0:37
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How do I get the row count of a pandas DataFrame?
...erty or just len(DataFrame.index). However, there are notable performance differences ( len(DataFrame.index) is fastest).
Code to reproduce the plot:
import numpy as np
import pandas as pd
import perfplot
perfplot.save(
"out.png",
setup=lambda n: pd.DataFrame(np.arange(n * 3).reshape(n, ...
Why am I getting a “401 Unauthorized” error in Maven?
...act to a Nexus Sonatype repository. You will get a 401 Unauthorized error if you supply the wrong credentials (password etc). You also get an error (and off the top of my head is also a 401) if you try to publish something to a releases repository and that version already exists in the repository....
What is a memory fence?
...nly found in device drivers than application code.
The CPU reordering is different from compiler optimisations - although the artefacts can be similar. You need to take separate measures to stop the compiler reordering your instructions if that may cause undesirable behaviour (e.g. use of the volat...
Get itunes link for app before submitting
...he binary is submitted through the application loader. Is there any other known way to get the itunes/app store link to my app before I submit the binary?
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What good are SQL Server schemas?
...a SQL 2000 guy and I've always been confused by schemas in 2005+. Yes, I know the basic definition of a schema, but what are they really used for in a typical SQL Server deployment?
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