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What is the performance of Objects/Arrays in JavaScript? (specifically for Google V8)
...;
var lastLongI = 1;
for(var i=0;i<10000;i++)
{
var before = Date.now();
for(var j=0;j<arrayCount;j++)
dynamicArrays[j][i] = i;
var span = Date.now() - before;
if (span > 10)
{
console.log(i + ": " + span + "ms" + " " + (i / lastLongI));
lastLongI =...
Mac OS X Terminal: Map option+delete to “backward delete word”
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On Yosemite, this is setting is now under Preferences -> Profiles -> Keyboard. Looks like you have to change/set it for each profile.
– palimpsestor
Mar 9 '15 at 21:08
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How is this fibonacci-function memoized?
...!!99, the 100th slot in the list gets "fleshed out", holding the number 99 now, ready for next access.
That is what that trick, "going-through-a-list", is exploiting. In normal doubly-recursve Fibonacci definition, fib n = fib (n-1) + fib (n-2), the function itself gets called, twice from the top,...
Change R default library path using .libPaths in Rprofile.site fails to work
...getenv())) ]
The two that matter for storing and accessing packages are (now different on a Linux box):
R_LIBS_SITE /usr/local/lib/R/site-library:/usr/lib/R/site-library:/usr/lib/R/library
R_LIBS_USER /home/david/R/x86_64-pc-linux-gnu-library/3.5....
Good ways to sort a queryset? - Django
... (487)
Gerald Rudolph (464)
Ulysses Simpson (474)
Harry Truman (471)
And now the combined order_by call:
>>> myauths = Author.objects.order_by('-score', 'last_name')[:5]
>>> for x in myauths: print x
...
James Monroe (487)
Ulysses Simpson (474)
Harry Truman (471)
Benjamin Harri...
How to change package name of an Android Application
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It does the same to me right now if I right-click on the root directory. At least for me, that's not my actual package name. If your package name is com.a.bc, there should be a directory below the root directory called bc. That's where you'll get the dif...
Get the first key name of a javascript object [duplicate]
... I'd like to point out that for (key in dict) is likely to execute significantly faster, O(1) rather than O(n). It's not silly at all.
– Steven Lu
Jan 8 '13 at 6:49
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Perl flags -pe, -pi, -p, -w, -d, -i, -t?
I have seen lots of ways of running Perl code or scripts, with different flags. However, when I try to google for what each flag means, I mainly get results to generic Perl sites and no specific information regarding the flags or their use is found there.
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How to check for a valid Base64 encoded string
...ing. I updated my question with an implementation of the solution let me know if you see any problems with it.
– Chris Mullins
Jun 10 '11 at 18:05
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UITextView style is being reset after setting text property
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Sitting with this for hours, I found the bug.
If the property "Selectable" = NO it will reset the font and fontcolor when setText is used.
So turn Selectable ON and the bug is gone.
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