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Collisions when generating UUIDs in JavaScript?
...parently StackOverflow won't let me.
I just ran a rudimentary test of 100,000 iterations in Chrome using the UUID algorithm you posted and got no collisions. Here's a code snippet:
var createGUID = function() {
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
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Git Server Like GitHub? [closed]
...IT License) and is the most installed git management software with over 25.000 installation. It has monthly releases and an active community with over 375 contributors. You can have unlimited private, internal and public repositories on your own server. It is a Ruby on Rails app that runs on most Un...
What RSA key length should I use for my SSL certificates?
...datacenter, for reference a newly built AWS datacenter is hosting about 60 000 servers.
It is incredible that a single mobile device can compute some maths over a few seconds... that millions of computers couldn't dream to guess in a lifetime.
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How to get current time in milliseconds in PHP?
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The short answer is:
$milliseconds = round(microtime(true) * 1000);
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Classes vs. Modules in VB.NET
..., but I have to work with it. I'm trying to break down a big class (>46,000 lines) because IntelliSense/ReSharper just die. I've found using Modules and just ripping out large chunks of functions into their own Module seems to work, but I'm wondering if I should give each module its own namespace...
Why would someone use WHERE 1=1 AND in a SQL clause?
... select * from t and checks:
the name is Bob; and
the salary is > $20,000
some people would add the first with a WHERE and subsequent ones with an AND thus:
select * from t where name = 'Bob' and salary > 20000
Lazy programmers (and that's not necessarily a bad trait) wouldn't distingui...
Counting the number of True Booleans in a Python List
...it x.count(True)
970 ns ± 41.1 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
In [4]: %timeit sum(x)
1.72 µs ± 161 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)
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Script to get the HTTP status code of a list of urls?
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I don't know why script from above andswer always get me 000 in the output, but when I run command only once without loop it works...
– Karol F
Aug 9 '16 at 7:08
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How to automatically start a service when running a docker container?
...e
a2enmod headers
service apache2 restart
a2ensite mysite.conf
a2dissite 000-default.conf
service apache2 reload
if [ -z "$1" ]
then
exec "/usr/sbin/apache2 -D -foreground"
else
exec "$1"
fi
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cocoapods - 'pod install' takes forever
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There are 17,000+ files/directories in the specs directory. It's not the most git friendly approach to whatever the heck it is they're doing there.
– Erik Reppen
May 19 '16 at 20:24
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