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How to run functions in parallel?
...ncurrent.futures import ThreadPoolExecutor, ProcessPoolExecutor
def sleep_secs(seconds):
time.sleep(seconds)
print(f'{seconds} has been processed')
secs_list = [2,4, 6, 8, 10, 12]
Now, if your operation is IO bound, then you can use the ThreadPoolExecutor as such:
with ThreadPoolExecutor() ...
Convert seconds to HH-MM-SS with JavaScript?
How can I convert seconds to an HH-MM-SS string using JavaScript?
34 Answers
34
...
Performance of Java matrix math libraries? [closed]
...readed ATLAS with C/C++, Octave, Python and R, the time taken was around 4 seconds.
Using Jama with Java, the time taken was 50 seconds.
Using Colt and Parallel Colt with Java, the time taken was 150 seconds!
Using JBLAS with Java, the time taken was again around 4 seconds as JBLAS uses multithre...
Scaling Node.js
...hat the general principles are for scaling node up to, say, 20 queries per second.
1 Answer
...
How to use string.replace() in python 3.x
...e() as a chain of str.replace(). Think you have a string like 'Testing PRI/Sec (#434242332;PP:432:133423846,335)' and you want to replace all the '#',':',';','/' sign with '-'. You can replace it either this way(normal way),
>>> str = 'Testing PRI/Sec (#434242332;PP:432:133423846,335)'
>...
How to set delay in android?
...way using its onTick(long) method
Have a look at this example showing a 30seconds countdown
new CountDownTimer(30000, 1000) {
public void onFinish() {
// When timer is finished
// Execute your code here
}
public void onTick(long millisUntilFinished...
Where can I find documentation on formatting a date in JavaScript?
...at may better meet your needs).
Also note that the Date Object Properties section provides a link to prototype, which illustrates some ways you can extend the Date object with custom methods. There has been some debate in the JavaScript community over the years about whether or not this is best pr...
Using semicolon (;) vs plus (+) with exec in find
...ind . -name 'test*' -exec echo {} \;
./test.c
./test.cpp
./test.new
./test.php
./test.py
./test.sh
With a plus, the command echo is called once only. Every file found is passed in as an argument.
$ find . -name 'test*' -exec echo {} \+
./test.c ./test.cpp ./test.new ./test.php ./test.py ./test.s...
List changes unexpectedly after assignment. How do I clone or copy it to prevent this?
...r, but I thought I'd do a speed comparison of the various methods:
10.59 sec (105.9us/itn) - copy.deepcopy(old_list)
10.16 sec (101.6us/itn) - pure python Copy() method copying classes with deepcopy
1.488 sec (14.88us/itn) - pure python Copy() method not copying classes (only dicts/lists/tuples)
...
How do I get the time of day in javascript/Node.js?
...n = date.getMinutes();
min = (min < 10 ? "0" : "") + min;
var sec = date.getSeconds();
sec = (sec < 10 ? "0" : "") + sec;
var year = date.getFullYear();
var month = date.getMonth() + 1;
month = (month < 10 ? "0" : "") + month;
var day = date.getDate();
...