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How to install JSTL? The absolute uri: http://java.sun.com/jstl/core cannot be resolved
.../reuse the EL logic in plain JSP too).
So, fix the taglib URI accordingly based on JSTL documentation:
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
Further you need to make absolutely sure that you do not throw multiple different versioned JSTL JAR files together into t...
Start ssh-agent on login
...n Arch Linux, the following works really great (should work on all systemd-based distros):
Create a systemd user service, by putting the following to ~/.config/systemd/user/ssh-agent.service:
[Unit]
Description=SSH key agent
[Service]
Type=simple
Environment=SSH_AUTH_SOCK=%t/ssh-agent.socket
Exec...
How to check if an object is a generator object in python?
...s and generators (generator function's result):
>>> def generator_function():
... yield 1
... yield 2
...
>>> import inspect
>>> inspect.isgeneratorfunction(generator_function)
True
calling generator_function won't yield normal result, it even won't execute any ...
How can I reverse a NSArray in Objective-C?
...nts that immutability should not be tested for at run time, but be assumed based on the returned type, so returning an NSMutableArray in this case is perfectly correct code.
– Peter N Lewis
Feb 26 '15 at 0:06
...
Which regular expression operator means 'Don't' match this character?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How can I declare and use Boolean variables in a shell script?
...
64
Use arithmetic expressions.
#!/bin/bash
false=0
true=1
((false)) && echo false
((tru...
Format floats with standard json module
...ckage). E.g., this code:
import json
from json import encoder
encoder.FLOAT_REPR = lambda o: format(o, '.2f')
print(json.dumps(23.67))
print(json.dumps([23.67, 23.97, 23.87]))
emits:
23.67
[23.67, 23.97, 23.87]
as you desire. Obviously, there should be an architected way to override FLOAT_REP...
How to exit from Python without traceback?
...Shutdown requested...exiting"
except Exception:
traceback.print_exc(file=sys.stdout)
sys.exit(0)
if __name__ == "__main__":
main()
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What does the variable $this mean in PHP?
...P.html
Example:
<?php
class Person {
public $name;
function __construct( $name ) {
$this->name = $name;
}
};
$jack = new Person('Jack');
echo $jack->name;
This stores the 'Jack' string as a property of the object created.
...
Regular expression to find URLs within a string
...
This is the one I use
(http|ftp|https)://([\w_-]+(?:(?:\.[\w_-]+)+))([\w.,@?^=%&:/~+#-]*[\w@?^=%&/~+#-])?
Works for me, should work for you too.
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