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A migration to add unique constraint to a combination of columns
...mns. i.e. for a people table, a combination of first_name , last_Name and Dob should be unique.
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Should image size be defined in the img tag height/width attributes or in CSS? [duplicate]
...better coding practice to define an images size in the img tag's width and height attributes?
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'await' works, but calling task.Result hangs/deadlocks
I have the following four tests and the last one hangs when I run it. Why does this happen:
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Getting a random value from a JavaScript array
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It is a simple one-liner
const randomElement = array[Math.floor(Math.random() * array.length)];
Example
const months = ["January", "February", "March", "April", "May", "June", "July"];
const random = Math.floor(Math.random() * months.length);
console....
Detect Chrome extension first run / update
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I used this code for a while and it worked great, until my extension requested a new permission on an update (which suspends the extension until the user accepts the permission). When the permission was accepted and the extension was unsuspended, the onI...
Why not use HTTPS for everything?
If I was setting up a server, and had the SSL certificate(s), why wouldn't I use HTTPS for the entire site instead of just for purchases/logins? I would think it would make more sense just to encrypt the entire site, and protect the user entirely. It would prevent problems such as deciding what has ...
How to filter git diff based on file extensions?
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Yes, if you ensure that git expands a glob rather than your shell then it will match at any level so something like this (quotes are important) should work fine.
git diff -- '*.c' '*.h'
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Visual C++: How to disable specific linker warnings?
...l linker option:
/ignore:4099
This is in Properties->Linker->Command Line
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How do I catch a numpy warning like it's an exception (not just for testing)?
...rr(all='warn'), which will transform the printed warning in a real warning and you'll be able to use the above solution to localize this change in behaviour.
Once you actually have a warning, you can use the warnings module to control how the warnings should be treated:
>>> import warnin...
When to use cla(), clf() or close() for clearing a plot in matplotlib?
... of many axes. Additionally, there are functions from the pyplot interface and there are methods on the Figure class. I will discuss both cases below.
pyplot interface
pyplot is a module that collects a couple of functions that allow matplotlib to be used in a functional manner. I here assume that...