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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...
Extract elements of list at odd positions
...notation for list slicing. Usually it is in the following form:
some_list[start:stop:step]
If we omitted start, the default (0) would be used. So the first element (at position 0, because the indexes are 0-based) would be selected. In this case the second element will be selected.
Because the se...
How can I keep Bootstrap popovers alive while being hovered?
... basically overrides Popover leave function, but calls the original (which starts timer to hide the popover). Then it attaches a one-off listener to mouseenter popover content element's.
If mouse enters the popover, the timer is cleared. Then it turns it listens to mouseleave on popover and if it's...
Scala actors: receive vs react
...ave only recently become interested in functional languages. Recently I've started looking at Scala, which seems like a very nice language.
...
What do (lambda) function closures capture?
Recently I started playing around with Python and I came around something peculiar in the way closures work. Consider the following code:
...
Is .NET Remoting really deprecated?
... IMO 'deprecated' is stronger than 'legacy': 'legacy' means "don't start", and deprecated means "if you've already started, stop now, because it may be removed entirely in future versions".
– ChrisW
Aug 18 '09 at 15:29
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