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Distributed sequence number generation?
...d service, i.e. you make a network call to get a unique ID;
which produces 64 bit unique IDs that are ordered by generation time;
and the service is highly scalable and (potentially) highly available; each instance can generate many thousand IDs per second, and you can run multiple instances on your...
How do I install Maven with Yum?
...ved this error: repos.fedorapeople.org/repos/dchen/apache-maven/epel-6/x86_64/…: [Errno 14] HTTPS Error 404 - Not Found Don't know if the repo is temporarily down or permanently down.
– anon58192932
Feb 29 '16 at 21:00
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Compare double to zero using epsilon
...
Assuming 64-bit IEEE double, there is a 52-bit mantissa and 11-bit exponent. Let's break it to bits:
1.0000 00000000 00000000 00000000 00000000 00000000 00000000 × 2^0 = 1
The smallest representable number greater than 1:
1.0000 ...
Where are Docker images stored on the host machine?
...
648
The contents of the /var/lib/docker directory vary depending on the driver Docker is using for...
Execution of Python code with -m option or not
...sys; print(sys.version)" > pdb.py
python -m pdb
3.5.2 |Anaconda 4.1.1 (64-bit)| (default, Jul 5 2016, 11:41:13) [MSC v.1900 64 bit (AMD64)]
Use the -I flag to lock this down for production environments (new in version 3.4):
python -Im pdb
usage: pdb.py [-c command] ... pyfile [arg] ...
etc.....
What are best practices for validating email addresses on iOS 2.0
...a-z0-9]+(-[a-z0-9]+)*\\.)+[a-z]{2,4}\\z";
NSString *regex2 = @"^(?=.{1,64}@.{4,64}$)(?=.{6,100}$).*";
NSPredicate *test1 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex1];
NSPredicate *test2 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex2];
return [test1 ev...
Select arrow style change
... 2rem;
}
If you need it to also work in IE update the svg arrow to base64 and add the following:
select::-ms-expand { display: none; }
background-image: url(data:image/svg+xml;base64,PHN2ZyBmaWxsPSdibGFjaycgaGVpZ2h0PScyNCcgdmlld0JveD0nMCAwIDI0IDI0JyB3aWR0aD0nMjQnIHhtbG5zPSdodHRwOi8vd3d3LnczLm9...
Best practices for styling HTML emails [closed]
... mean to add images as attachments, instead they should be included as base64-encoded strings to replace the url referenced in "normal" <img> tags, like so: <img alt="Embedded Image" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIA...">
– Timo
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Modify Address Bar URL in AJAX App to Match Current State
...n you want to save the state, you serialize the object (using JSON and base64 encoding). You can then set the fragment of the href to this string.
var encodedState = base64(json(state));
var newLocation = oldLocationWithoutFragment + "#" + encodedState;
document.location = newLocation; // adds ne...
Partly cherry-picking a commit with Git
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