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Regular expression for floating point numbers
...r certainly takes care of 0.24 and 2.2 and correctly disallows 4.2.44 All tested with regex101.com However, it disallows 123. which as you say may be acceptable (and I think it is!). I can fix this by changing your expression to [-+]?(\d*[.])?\d* (notice * at end instead of +) but then crazy thing...
Difference between class and type
...tor bodies.
Let us understand by the example in the JLS below it.
class Test {
<T extends C & I> void test(T t) {
t.mI(); // OK
t.mCPublic(); // OK
t.mCProtected(); // OK
t.mCPackage(); // OK
}
}
You see that your object ...
switch / pattern matching idea
...if you are writing tons of 'business rules/logic' that does arbitrary type tests like this and whatnot, I can see how it would be handy.
I've no clue if this is ever likely to be a C# language feature (seems doubtful, but who can see the future?).
For reference, the corresponding F# is approximate...
How to delete the contents of a folder?
...emented. It removes all the content of a folder but not the folder itself. Tested on Linux with files, folders and symbolic links, should work on Windows as well.
import os
import shutil
for root, dirs, files in os.walk('/path/to/folder'):
for f in files:
os.unlink(os.path.join(root, f...
Setting action for back button in navigation controller
...
@TimAutin I just tested this again and seems like something has changed. Key part to understand that in a UINavigationController, the navigationBar.delegate is set to the navigation controller. So the methods SHOULD get called. However, in Sw...
How do I add the contents of an iterable to a set?
...nce competitive with doing aset.update(), here's an example of how you can test your beliefs quickly before going public:
>\python27\python -mtimeit -s"it=xrange(10000);a=set(xrange(100))" "a.update(it)"
1000 loops, best of 3: 294 usec per loop
>\python27\python -mtimeit -s"it=xrange(10000);...
Differences between “BEGIN RSA PRIVATE KEY” and “BEGIN PRIVATE KEY”
...ven with more headers added. If you care about performance, use PKCS#1. My test shows 3 times faster.
– ZZ Coder
Dec 5 '14 at 18:08
5
...
Simplest way to detect a mobile device in PHP
... @naveed Just a heads up, this no longer seems to be working. Tested in IOS 8.1 using Chrome's mobile browser. Justin's is working for me though.
– James
Aug 27 '15 at 17:04
...
Can I use my existing git repo with openshift?
...rom you project folder, do
git remote add backup user@server:/path/to/git/test.git
git push backup master
You can read Pushing to two git remote origins from one repository and Changing git remote origin.
share
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What is __main__.py?
...cuted when the zip file in run. For example, if the zip file was as such:
test.zip
__main__.py
and the contents of __main__.py was
import sys
print "hello %s" % sys.argv[1]
Then if we were to run python test.zip world we would get hello world out.
So the __main__.py file run when python...