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How do I catch a numpy warning like it's an exception (not just for testing)?
...ifference style one. The problem I have is that I need to catch a division by zero, but Python (or maybe numpy) just makes it a warning instead of a normal exception.
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Recommended way of making React component/div draggable
I want to make a draggable (that is, repositionable by mouse) React component, which seems to necessarily involve global state and scattered event handlers. I can do it the dirty way, with a global variable in my JS file, and could probably even wrap it in a nice closure interface, but I want to kno...
How to find commits by a specific user in Git? [duplicate]
...I needed to review someone's commits. How can I see a list of commits made by a specific user?
2 Answers
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SQL query for finding records where count > 1
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Use the HAVING clause and GROUP By the fields that make the row unique
The below will find
all users that have more than one payment per day with the same account number
SELECT
user_id ,
COUNT(*) count
FROM
PAYMENT
GROUP BY
account,
user_id ,...
What is a semaphore?
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The article Mutexes and Semaphores Demystified by Michael Barr is a great short introduction into what makes mutexes and semaphores different, and when they should and should not be used. I've excerpted several key paragraphs here.
The key point is that mutexes should be ...
MySQL - How to select data by string length
...for CHAR_LENGTH() to get the number of characters in a string.
For multi-byte charsets LENGTH() will give you the number of bytes the string occupies, while CHAR_LENGTH() will return the number of characters.
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Is there a way to “autosign” commits in Git with a GPG key?
...s in Git 2.0 (after being resend in this patch series)
See commit 2af2ef3 by Nicolas Vigier (boklm):
Add the commit.gpgsign option to sign all commits
If you want to GPG sign all your commits, you have to add the -S option all the time.
The commit.gpgsign config option allows to sign all com...
How to display unique records from a has_many through relationship?
...ock.com/rails/v4.1.8/ActiveRecord/QueryMethods/uniq It occurs in SQL not ruby
– engineerDave
Mar 26 '15 at 21:37
6
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How to run a program without an operating system?
How do you run a program all by itself without an operating system running?
Can you create assembly programs that the computer can load and run at startup, e.g. boot the computer from a flash drive and it runs the program that is on the CPU?
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How do I compare two files using Eclipse? Is there any option provided by Eclipse?
...omparison increases greatly (in my opinion).
– loved.by.Jesus
Sep 23 at 8:52
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