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What's the best way to set a single pixel in an HTML5 canvas?
... 100,000 randomly coloured pixels in random locations, with Chrome 9.0.597.84 on an (old) MacBook Pro, takes less than 100ms with putImage(), but nearly 900ms using fillRect(). (Benchmark code at http://pastebin.com/4ijVKJcC).
If instead I choose a single colour outside of the loops and just plot ...
Getting a map() to return a list in Python 3.x
...t; %%timeit -r5 ordinals = list(range(45))
... [*map(chr, ordinals)]
...
3.84 µs ± 219 ns per loop (mean ± std. dev. of 5 runs, 100000 loops each)
>>> %%timeit -r5 ordinals = list(range(45))
... [*bytes(ordinals).decode('ascii')]
...
1.43 µs ± 49.7 ns per loop (mean ± std. dev. of 5 ...
Why are there no ++ and -- operators in Python?
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84
This original answer I wrote is a myth from the folklore of computing: debunked by Dennis Ritch...
How can I convert uppercase letters to lowercase in Notepad++
... Ctrl+U for convert back to small letters
– pramodc84
Nov 3 '13 at 11:26
3
CTRL+A is select all...
Create ArrayList from array
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84
@Adam Please study the javadoc for java.util.List. The contract for add allows them to throw an UnsupportedOperationException. docs.oracle....
Multi-line string with extra space (preserved indentation)
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84
echo adds spaces between the arguments passed to it. $text is subject to variable expansion and...
Hidden Features of C++? [closed]
...developers.
(Source: Among others, Herb Sutter's online Guru of the Week #84: http://www.gotw.ca/gotw/084.htm )
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edited May 28 '10 at 21:25
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When is it appropriate to use C# partial classes?
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84
Multiple Developer Using Partial Classes multiple developer can work on the same class
easily....
Using generic std::function objects with member functions in one class
... plasmacel
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answered Sep 28 '11 at 11:32
Alex BAlex B
73.5k3636 gold ba...
How to split last commit into two in Git
... "2" put in the last line):
$ git commit -am "Added last line"
[master 5e284e6] Added last line
1 files changed, 1 insertions(+), 0 deletions(-)
Let's check the log to see what commits we have:
$ git log -p -n2 | cat
Commit 5e284e652f5e05a47ad8883d9f59ed9817be59d8
Author: ...
Date: ...
Add...
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