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How do I fix blurry text in my HTML5 canvas?
...to unnecessary pixels. For higher ratios you are now right back where you started with a blurry, low res asset/element. Another issue that Philipp seemed to be alluding to is that everything you draw to your context must now be drawn to your doubled width/height even though it is being displayed a...
What is the AppDelegate for and how do I know when to use it?
...tant of these are:
applicationDidFinishLaunching: - good for handling on-startup configuration and construction
applicationWillTerminate: - good for cleaning up at the end
You should avoid putting other functionality in the AppDelegate since they don't really belong there. Such other functionali...
What's the best online payment processing solution? [closed]
...ry easy to do, but still a lot harder than adding a PayPal button) and you start to build up a true picture.
On the flip side, a service such as PayPal has very low setup costs (no fee to pay, and trivially easy to integrate), but relatively high transaction costs. It is great for high value / low v...
How to implement common bash idioms in Python? [closed]
...go overboard. Replace what you need and evolve your "grep" module. Don't start out writing a Python module that replaces "grep".
The best thing is that you can do this in steps.
Replace AWK and PERL with Python. Leave everything else alone.
Look at replacing GREP with Python. This can be a bit ...
What are the differences between type() and isinstance()?
...h introduces a generalization of it, was accepted and has been implemented starting with Python 2.6 and 3.0.
The PEP makes it clear that, while ABCs can often substitute for duck typing, there is generally no big pressure to do that (see here). ABCs as implemented in recent Python versions do howev...
string c_str() vs. data()
...g::substr could internally hold a reference to shared string data, and the start/end range, avoiding the copy (and additional allocation) of the actual string data. The implementation would defer the copy until you call c_str or modify any of the strings. No copy would ever be made if the strigns in...
How do I add a library project to Android Studio?
... and those from screenshots, but the process is very similar).
Before you start adding a library to your project by hand, consider adding the external dependency. It won’t mess in your project structure. Almost every well-known Android library is available in a Maven repository and its installati...
When should I use a trailing slash in my URL?
...s processed. Everything worked quite good until now, but that entire thing starts to feel slower and you investigate.
Soon, you'll notice that /dvd/list is doing exactly the same: Redirecting to /dvd/list/ which is then internally translated into index.php?controller=dvd&action=list. One additi...
Compute a confidence interval from sample data
...
Starting Python 3.8, the standard library provides the NormalDist object as part of the statistics module:
from statistics import NormalDist
def confidence_interval(data, confidence=0.95):
dist = NormalDist.from_samples(d...
Refreshing OAuth token using Retrofit without modifying all calls
... case. in Request authenticate(...) method: - do any initalization stuff - start synchronized block ( synchronized(MyAuthenticator.class) { ... } ) - in that block retrieve current access & refresh token - check if failed request was using latest access token (resp.request().header("Authorizatio...