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What is the “-->” operator in C++?
...rd "then" implies there is an order (after post decrementing, x's value is one less). I think one can say "You're post decrementing x and then comparing its old value and 0 ..." to make it clearer. But this is nitpicking anyway. We all know what is meant.
– Johannes Schaub - li...
How to compare two NSDates: Which is more recent?
...ying to achieve a dropBox sync and need to compare the dates of two files. One is on my dropBox account and one is on my iPhone.
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How to draw a rounded Rectangle on HTML Canvas?
I found that there are only can fill rectangle, but no rounded corner one, how can I do that?
12 Answers
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Clear file cache to repeat performance testing
... spread across 30 files in 10 subdirectories, you must open each and every one separately to make sure you read the actual disk instead of the cache?
– Synetech
Dec 1 '13 at 0:51
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Android: View.setID(int id) programmatically - how to avoid ID conflicts?
...ake any guarantees then as to which view is returned if there's more than one with the same ID? The docs don't mention anything.
– Matthias
May 3 '12 at 10:04
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JavaScript - get the first day of the week from current date
... 0=Sunday, 1=Monday, etc).
You can then subtract that number of days plus one, for example:
function getMonday(d) {
d = new Date(d);
var day = d.getDay(),
diff = d.getDate() - day + (day == 0 ? -6:1); // adjust when day is sunday
return new Date(d.setDate(diff));
}
getMonday(new Date(...
wget/curl large file from google drive
...ed. Google Apps customers can continue to use this feature for a period of one year until August 31, 2016, when serving content via googledrive.com/host/doc id will be discontinued." googleappsupdates.blogspot.com/2015/08/…
– chrish
Sep 18 '15 at 14:44
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To ARC or not to ARC? What are the pros and cons? [closed]
...you should have anyway. But it's smarter than you and can optimize out the ones that aren't actually needed (just like it can unroll loops, eliminate temporary variables, inline functions, etc.)
OK, now I will tell you about the small downsides:
If you're a long-time ObjC developer, you will twit...
How to get the mouse position without events (without moving the mouse)?
...t; elements, checking currentStyle / getComputedStyle() until you find the one with the hover font. Extrapolate back from this element to get the co-ordinates within the document.
N.B. DON'T DO THIS.
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Convert to binary and keep leading zeros in Python
...ry nice. I never would have known that's what you meant from explanation alone. But now I've seen your example, I'll probably never forget it. Cheers.
– voices
May 11 '19 at 20:04
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