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Why dict.get(key) instead of dict[key]?
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It allows you to provide a default value if the key is missing:
dictionary.get("bogus", default_value)
returns default_value (whatever you choose it to be), whereas
dictionary["bogus"]
would raise a KeyError.
If omitted, default_valu...
How to find serial number of Android device?
I need to use a unique ID for an Android app and I thought the serial number for the device would be a good candidate. How do I retrieve the serial number of an Android device in my app ?
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How do you generate dynamic (parameterized) unit tests in python?
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This is called "parametrization".
There are several tools that support this approach. E.g.:
pytest's decorator
parameterized
The resulting code looks like this:
from parameterized import parameterized
class TestSequence(unittest.TestC...
Generate random password string with requirements in javascript
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Forcing a fixed number of characters is a bad idea. It doesn't improve the quality of the password. Worse, it reduces the number of possible passwords, so that hacking by bruteforcing becomes easier.
To generate a random word consisting of alphanumeric characters, use:
var randomstring =...
Is there a way to make ellipsize=“marquee” always scroll?
...but the text is only being scrolled when the TextView gets focus. That's a problem, because in my case, it can't.
8 Answers...
Creating email templates with Django
I want to send HTML-emails, using Django templates like this:
12 Answers
12
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Android - Using Custom Font
... the solutions described in this thread, I accidentally found Calligraphy (https://github.com/chrisjenx/Calligraphy) - a library by Christopher Jenkins that lets you easily add custom fonts to your app. The advantages of his lib comparing to approaches suggested here are:
you don't have to introdu...
Possible to iterate backwards through a foreach?
...of Linq's own Reverse implementation, still, it was fun working this out.
https://msdn.microsoft.com/en-us/library/vstudio/bb358497(v=vs.100).aspx
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Removing fields from struct or hiding them in JSON Response
I've created an API in Go that, upon being called, performs a query, creates an instance of a struct, and then encodes that struct as JSON before sending back to the caller. I'd now like to allow the caller to be able to select the specific fields they would like returned by passing in a "fields" G...
Checkout another branch when there are uncommitted changes on the current branch
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Preliminary notes
The observation here is that, after you start working in branch1 (forgetting or not realizing that it would be good to switch to a different branch branch2 first), you run:
git checkout branch2
Sometimes...