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~x + ~y == ~(x + y) is always false?
...sides are not equal, since they have at least that one bit that is flipped from each other.
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Waiting until two async blocks are executed before starting another block
...ule them on the same serial queue, they'll run serially. It's no different from scheduling the blocks without groups.
– Jörn Eyrich
Aug 11 '12 at 14:12
1
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Can I incorporate both SignalR and a RESTful API?
...really sped up the page considerably and reduced a lot of the server calls from the page.
3 Answers
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iPhone Keyboard Covers UITextField
...View beginAnimations: @"anim" context: nil];
[UIView setAnimationBeginsFromCurrentState: YES];
[UIView setAnimationDuration: movementDuration];
self.view.frame = CGRectOffset(self.view.frame, 0, movement);
[UIView commitAnimations];
}
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Current time in microseconds in java
...at ability.
It does have System.nanoTime(), but that just gives an offset from some previously known time. So whilst you can't take the absolute number from this, you can use it to measure nanosecond (or higher) precision.
Note that the JavaDoc says that whilst this provides nanosecond precision, ...
AngularJS ng-repeat handle empty list case
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YES! Ninja plus points! This saves angular from evaluating a complex filter twice!
– markmarijnissen
Mar 19 '14 at 19:40
2
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How to read file contents into a variable in a batch file?
This batch file releases a build from TEST to LIVE. I want to add a check constraint in this file that ensures there is an accomanying release document in a specific folder.
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Class method decorator with self arguments?
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A more concise example might be as follows:
#/usr/bin/env python3
from functools import wraps
def wrapper(method):
@wraps(method)
def _impl(self, *method_args, **method_kwargs):
method_output = method(self, *method_args, **method_kwargs)
return method_output + "!"
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Cross-Origin Request Headers(CORS) with PHP headers
...e CORS-compliant method. It will allow any GET, POST, or OPTIONS requests from any
* origin.
*
* In a production environment, you probably want to be more restrictive, but this gives you
* the general idea of what is involved. For the nitty-gritty low-down, read:
*
* - https://developer....
How to get CRON to call in the correct PATHs
...rying to get cron to call in the correct PATHs. When I run a Python script from shell the script runs fine as it uses the PATHs set in bashrc but when I use cron all the PATHs are not used from bashrc. Is there a file I can enter the PATHs into for cron like bashrc or a way to call the PATHs from ba...