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Why does Math.round(0.49999999999999994) return 1?
...ang/Math.html#round%28double%29
2. http://bugs.java.com/bugdatabase/view_bug.do?bug_id=6430675 (credits to @SimonNickerson for finding this)
3. http://docs.oracle.com/javase/7/docs/api/java/lang/Math.html#round%28double%29
4. http://grepcode.com/file/repository.grepcode.com/java/root/jdk/op...
Int or Number DataType for DataAnnotation validation attribute
...se localization on the message:
<input asp-for="Age" data-val-number="@_localize["Please enter a valid number."]"/>
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Best practices for in-app database migration for Sqlite
...t/set this variable with the following sqlite statements:
> PRAGMA user_version;
> PRAGMA user_version = 1;
When the app starts, I check the current user-version, apply any changes that are needed to bring the schema up to date, and then update the user-version. I wrap the updates in a t...
Python list iterator behavior and next(iterator)
... a = iter(list(range(10)))
>>> for i in a:
... print(i)
... _ = next(a)
...
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or print extra information to differentiate the print() output from the interactive interpreter echo:
>>> a = iter(list(range(10)))
>>> for i in a:
... print('Printing: {}'.f...
Pickle incompatibility of numpy arrays between Python 2 and 3
...mport gzip
import numpy
with open('mnist.pkl', 'rb') as f:
u = pickle._Unpickler(f)
u.encoding = 'latin1'
p = u.load()
print(p)
Unpickling it in Python 2 and then repickling it is only going to create the same problem again, so you need to save it in another format.
...
How does this milw0rm heap spraying exploit work?
...ch stuff could happen with Chrome's extensions?
– bad_keypoints
Jul 6 '13 at 9:44
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Trying to mock datetime.date.today(), but not working
...ock.patch('datetime.date.today')
def test():
datetime.date.today.return_value = date(2010, 1, 1)
print datetime.date.today()
Unfortunately, this won't work:
>>> test()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "build/bdist.macosx-...
window.close and self.close do not close the window in Chrome
...ion" exploit. So code like this used to work in general:
open(location, '_self').close();
This is buggy behavior, IMO, and is now (as of roughly April 2015) mostly blocked. It will still work from injected code only if the tab is freshly opened and has no pages in the browsing history. So it'...
What are best practices for validating email addresses on iOS 2.0
... *) candidate {
NSString *emailRegex =
@"(?:[a-z0-9!#$%\\&'*+/=?\\^_`{|}~-]+(?:\\.[a-z0-9!#$%\\&'*+/=?\\^_`{|}"
@"~-]+)*|\"(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21\\x23-\\x5b\\x5d-\\"
@"x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])*\")@(?:(?:[a-z0-9](?:[a-"
@"z0-9-]*[a-z0-9])?\\.)+[a-z0-...
What are the Dangers of Method Swizzling in Objective-C?
...e:(NSRect)frame;
@end
@implementation NSView (MyViewAdditions)
- (void)my_setFrame:(NSRect)frame {
// do custom work
[self my_setFrame:frame];
}
+ (void)load {
[self swizzle:@selector(setFrame:) with:@selector(my_setFrame:)];
}
@end
This works just fine, but what would happen if my...