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Number of days between two NSDates [duplicate]
...Calendar *calendar = [NSCalendar currentCalendar];
[calendar rangeOfUnit:NSCalendarUnitDay startDate:&fromDate
interval:NULL forDate:fromDateTime];
[calendar rangeOfUnit:NSCalendarUnitDay startDate:&toDate
interval:NULL forDate:toDateTime];
NSDateComponents *dif...
C++11 emplace_back on vector?
..., even though implementation internally will still call T(arg0, arg1, ...) it will be considered as regular T{arg0, arg1, ...} that you would expect.
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from list of integers, get number closest to a given value
...ber.
>>> min(myList, key=lambda x:abs(x-myNumber))
4
Note that it also works with dicts with int keys, like {1: "a", 2: "b"}. This method takes O(n) time.
If the list is already sorted, or you could pay the price of sorting the array once only, use the bisection method illustrated in ...
how to change an element type using jquery
...
Here's one way you could do it with jQuery:
var attrs = { };
$.each($("b")[0].attributes, function(idx, attr) {
attrs[attr.nodeName] = attr.nodeValue;
});
$("b").replaceWith(function () {
return $("<h1 />", attrs).append($(this).conten...
Is it possible to use pip to install a package from a private GitHub repository?
I am trying to install a Python package from a private GitHub repository. For a public repository, I can issue the following command which works fine:
...
Difference between CC, gcc and g++?
...fferent from what happens on Solaris, for example.
The easy part (because it is not platform-specific) is the separation of 'gcc' and 'g++':
gcc is the GNU C Compiler from the GCC (GNU Compiler Collection).
g++ is the GNU C++ Compiler from the GCC.
The hard part, because it is platform-specific...
How does Zalgo text work?
I've seen weirdly formatted text called Zalgo like below written on various forums. It's kind of annoying to look at, but it really bothers me because it undermines my notion of what a character is supposed to be. My understanding is that a character is supposed to move horizontally across a line an...
PHP Constants Containing Arrays?
...
NOTE: while this is the accepted answer, it's worth noting that in PHP 5.6+ you can have const arrays - see Andrea Faulds' answer below.
You can also serialize your array and then put it into the constant:
# define constant, serialize array
define ("FRUITS", seria...
Remove all files except some from a directory
When using sudo rm -r , how can I delete all files, with the exception of the following:
19 Answers
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JavaScript seconds to time string with format hh:mm:ss
... = "0"+seconds;}
return hours+':'+minutes+':'+seconds;
}
You can use it now like:
alert("5678".toHHMMSS());
Working snippet:
String.prototype.toHHMMSS = function () {
var sec_num = parseInt(this, 10); // don't forget the second param
var hours = Math.floor(sec_num / 3600);
...