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What is the purpose of python's inner classes?
...r class:
Logical grouping of classes: If a class is useful to only one other class then it is logical to embed it in that class and keep the two together. Nesting such "helper classes" makes their package more streamlined.
Increased encapsulation: Consider two top-level classes A and B whe...
Good MapReduce examples [closed]
...the list, like:
3 : 3
4 : 3
5 : 2
8 : 2
The reductions can also be done in parallel, again providing a huge
advantage. We can then look at these final results and see that there
were only two words of length 5 in our corpus, etc...
The most common example of mapreduce is for counting...
Is DateTime.Now the best way to measure a function's performance?
...is quite a bit slower than DateTime.UtcNow due to the work that has to be done with timezones, DST and such.
DateTime.UtcNow typically has a resolution of 15 ms. See John Chapman's blog post about DateTime.Now precision for a great summary.
Interesting trivia: The stopwatch falls back on DateTime...
How to reload/refresh an element(image) in jQuery
...t way of fetching the image telling the browser to forget about the cached one?
– spuas
Jul 3 '13 at 9:16
I have a rea...
Regular Expression For Duplicate Words
...
Moreover, it won't catch triplicates (or more), not when one of the dup/triplicate is at the end of the string
– Nico
Feb 18 '16 at 20:03
...
jQuery OR Selector?
... noted this isn't really an 'or' selector, more like multiple selectors in one.
– alex
Feb 15 '10 at 3:57
50
...
How to delete duplicate lines in a file without sorting it in Unix?
... do something like for f in *.txt; do gawk -i inplace '!seen[$0]++' "$f"; done
– Nick K9
Jan 17 '19 at 18:05
@NickK9 t...
Why can I add named properties to an array as if it were an object?
...
The next time someone says JavaScript is a good language to develop with, I'll show him this sample. Thank you.
– Olivier Pons
Apr 19 '14 at 8:04
...
RGB to hex and hex to RGB
...GB to hex conversion and add any required zero padding:
function componentToHex(c) {
var hex = c.toString(16);
return hex.length == 1 ? "0" + hex : hex;
}
function rgbToHex(r, g, b) {
return "#" + componentToHex(r) + componentToHex(g) + componentToHex(b);
}
alert(rgbToHex(0, 5...
Getting “Skipping JaCoCo execution due to missing execution data file” upon executing JaCoCo
...oco-maven-plugin:0.7.10-SNAPSHOT
From jacoco:prepare-agent that says:
One of the ways to do this in case of maven-surefire-plugin - is to
use syntax for late property evaluation:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugi...