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What are enums and why are they useful?
...s (contract status: "permanent", "temp", "apprentice"), or flags ("execute now", "defer execution").
If you use enums instead of integers (or String codes), you increase compile-time checking and avoid errors from passing in invalid constants, and you document which values are legal to use.
BTW, o...
Resizing an image in an HTML5 canvas
...shop with the resampling set to 'Nearest Neighbor' instead of Bicubic. I know its possible to get this to look right, because this site can do it just fine using a canvas as well. I've tried using the same code they do as shown in the "[Source]" link, but it still looks terrible. Is there somet...
Difference between \b and \B in regex
...ern to be searched for is 'cat':
text = "catmania thiscat thiscatmaina";
Now definitions,
'\b' finds/matches the pattern at the beginning or end of each word.
'\B' does not find/match the pattern at the beginning or end of each word.
Different Cases:
Case 1: At the beginning of each word
resu...
Comparison of Android networking libraries: OkHTTP, Retrofit, and Volley [closed]
...over the wall and do an I|O presentation on it" library.
EDIT - Volley is now officially supported by Google. Kindly refer Google Developer Guide
From what I've read, seems like OkHTTP is the most robust of the 3
Retrofit uses OkHTTP automatically if available. There is a Gist from Jake Whart...
Difference between __getattr__ vs __getattribute__
...efined. In the following example my class Count has no __getattr__ method. Now in main when I try to access both obj1.mymin and obj1.mymax attributes everything works fine. But when I try to access obj1.mycurrent attribute -- Python gives me AttributeError: 'Count' object has no attribute 'mycurrent...
Scrolling child div scrolls the window, how do I stop that?
...er scroll wheels disappear and reappear based on the user moving the mouse now, so the above comment is problem no longer an issue.
– Keith Holliday
Oct 16 '15 at 3:42
...
Move existing, uncommitted work to a new branch in Git
... you have been making commits on your main branch while you coded, but you now want to move those commits to a different branch, this is a quick way:
Copy your current history onto a new branch, bringing along any uncommitted changes too:
git checkout -b <new-feature-branch>
Now force the ...
dispatch_after - GCD in Swift?
... () -> ().
Example usage:
let delayTime = dispatch_time(DISPATCH_TIME_NOW, Int64(1 * Double(NSEC_PER_SEC)))
dispatch_after(delayTime, dispatch_get_main_queue()) {
print("test")
}
EDIT:
I recommend using @matt's really nice delay function.
EDIT 2:
In Swift 3, there will be new wrappers ...
Is there an equivalent of 'which' on the Windows command line?
...
@mawg, the original was for where you know the extension since it mirrors which under UNIX (where that extension-adding trickery doesn't occur). I've now added one which can do what you wish but it's no longer a simple command so much as a script. It first tries t...
How do I find a “gap” in running counter with SQL?
...rt into artificial_range( name ) select name from artificial_range;
-- you now have two rows
insert into artificial_range( name ) select name from artificial_range;
-- you now have four rows
insert into artificial_range( name ) select name from artificial_range;
-- you now have eight rows
--etc.
...