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Reverse a string in Python
There is no built in reverse function for Python's str object. What is the best way of implementing this method?
28 Ans...
Combined area of overlapping circles
...the empty cells give the higher bound, the partial cells give the max area error.
If the error is too big for you, you refine the partial cells until you get the right precision.
I think this will be easier to implement than the geometric method which may require to handle a lot of special cases.
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Can you use @Autowired with static fields?
...ring static field (or constant) will be ignored, but also won't create any error:
@Autowired
private static String staticField = "staticValue";
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MongoDB Show all contents from all collections
... I replaced db name with my db name, which kept on giving me errors. So don't do stupid things like me :D , stick to db.<collection_name>.find();
– adam shamsudeen
Nov 29 '18 at 14:37
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Show SOME invisible/whitespace characters in Eclipse
...exp rules to detect lines with TABs and then mark such lines as checkstyle ERROR, which is clearly visible in Eclipse editor. Works fine.
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Find the division remainder of a number
...or any finite x, and remainder(x, 0) and remainder(math.inf, x)
raise ValueError for any non-NaN x. If the result of the remainder
operation is zero, that zero will have the same sign as x.
On platforms using IEEE 754 binary floating-point, the result of this
operation is always exactly representabl...
What's the difference between faking, mocking, and stubbing?
...urns a canned response, or that responds to an API request with a specific error. This way you could write tests that make assertions about how the system reacts to these states; for example, testing the response your users get if the API returns a 404 error.
A stub is usually implemented to only r...
Remove the last character in a string in T-SQL?
...ng = ''
SELECT LEFT(@String, LEN(@String) - 1)
then this code will cause error message 'Invalid length parameter passed to the substring function.'
You can handle it this way:
SELECT LEFT(@String, NULLIF(LEN(@String)-1,-1))
It will always return result, and NULL in case of empty string.
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How should I log while using multiprocessing in Python?
...w uses a queue for correct handling of concurrency, and also recovers from errors correctly. I've now been using this in production for several months, and the current version below works without issue.
from logging.handlers import RotatingFileHandler
import multiprocessing, threading, logging, sy...
How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess
...ions {}
GNU Parallel will give you exit code:
0 - All jobs ran without error.
1-253 - Some of the jobs failed. The exit status gives the number of failed jobs
254 - More than 253 jobs failed.
255 - Other error.
Watch the intro videos to learn more: http://pi.dk/1
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