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Simple calculations for working with lat/lon and km distance?
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Interesting that I didn't see a mention of UTM coordinates.
https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system.
At least if you want to add km to the same zone, it should be straightforward (in Python : https://pypi.org/project/utm/ )
utm.from_latlon and u...
How to validate a url in Python? (Malformed or not)
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import re
regex = re.compile(
r'^(?:http|ftp)s?://' # http:// or https://
r'(?:(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+(?:[A-Z]{2,6}\.?|[A-Z0-9-]{2,}\.?)|' #domain...
r'localhost|' #localhost...
r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})' # ...or ip
r'(?::\d+)...
How to style CSS role
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Use CSS attribute selectors:
https://developer.mozilla.org/en-US/docs/CSS/Attribute_selectors
e.g.:
div[role=main]
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How to send JSON instead of a query string with $.ajax?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Include an SVG (hosted on GitHub) in MarkDown
...he working example on github.com.
Linking to RAW files
Code
<img src="https://raw.github.com/potherca-blog/StackOverflow/master/question.13...
How do you use Mongoose without defining a schema?
...swer. Just wanted to add this in case someone comes across the same thing. https://mongoosejs.com/docs/guide.html#toJSON
– Chris
Apr 8 '19 at 15:18
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What ports does RabbitMQ use?
... manual has the answer. It's defined in the RABBITMQ_NODE_PORT variable.
https://www.rabbitmq.com/configure.html#define-environment-variables
The number might be differently if changed by someone in the rabbitmq configuration file:
vi /etc/rabbitmq/rabbitmq-env.conf
Ask the computer to tell yo...
How can I tell if my server is serving GZipped content?
...then echo "supported"
else echo "unsupported"
fi
example:
$ ./script.sh https://example.com/
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How to install latest version of git on CentOS 7.x/6.x
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the pgp key isn't available via https, can anyone else verify it?
– user3338098
Mar 15 '19 at 19:11
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How to play audio?
...ile.mp3');
audio.play();
function play() {
var audio = new Audio('https://interactive-examples.mdn.mozilla.net/media/examples/t-rex-roar.mp3');
audio.play();
}
<button onclick="play()">Play Audio</button>
This uses the HTMLAudioElement interface, which plays audio th...