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Is there a way to get the XPath in Google Chrome?
...luate XPath/CSS selectors and highlight matching nodes in the DOM.
Execute tokens $x("some_xpath") or $$("css-selectors") in Console panel, which will both evaluate and validate.
From Elements panel
Press F12 to open up Chrome DevTools.
Elements panel should be opened by default.
Press Ctrl + F t...
How do I get an ISO 8601 date on iOS?
...
Use NSDateFormatter:
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
NSLocale *enUSPOSIXLocale = [NSLocale localeWithLocaleIdentifier:@"en_US_POSIX"];
[dateFormatter setLocale:enUSPOSIXLocale];
[dateFormatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ssZZZZZ"];
[dateFormatter setCale...
Having a UITextField in a UITableViewCell
...ntifier:kCellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:kCellIdentifier] autorelease];
cell.accessoryType = UITableViewCellAccessoryNone;
if ([indexPath section] == 0) {
...
How does the NSAutoreleasePool autorelease pool work?
As I understand it, anything created with an alloc , new , or copy needs to be manually released. For example:
7 Answer...
Count the number of occurrences of a character in a string in Javascript
...bar".split("o").length-1
//>2
split not recommended. Resource hungry. Allocates new instances of 'Array' for each match. Don't try that for a >100MB file via FileReader. You can actually easily observe the EXACT resource usage using Chrome's profiler option.
3.
var stringsearch = "o"
,str...
fatal: The current branch master has no upstream branch
...because you don't want to generate a secondary key, a PAT: personal Access Token), then you can switch to ssh, as I have shown here.
As noted by qwerty in the comments, you can automatically create the branch of same name on the remote with:
git push -u origin head
Why?
HEAD (see your .git\...
Difference between string and char[] types in C++
...
A char array is just that - an array of characters:
If allocated on the stack (like in your example), it will always occupy eg. 256 bytes no matter how long the text it contains is
If allocated on the heap (using malloc() or new char[]) you're responsible for releasing the memory...
RAII and smart pointers in C++
...ay to describe this limitation in Java or C# is because there is no way to allocate on the stack. C# allows stack allocation through a special keyword however, you lose type saftey.
– ApplePieIsGood
Dec 28 '08 at 14:25
...
Why are hexadecimal numbers prefixed with 0x?
...his is great because
an integer constant now always consists of a single token,
the parser can still tell right away it's got a constant,
the parser can immediately tell the base (0 is the same in both bases),
it's mathematically sane (00005 == 05), and
no precious special characters are needed (a...
iPhone OS: How do I create an NSDate for a specific date?
...ing code. Thought I'd share:
NSDateComponents *comps = [[NSDateComponents alloc] init];
[comps setDay:10];
[comps setMonth:10];
[comps setYear:2010];
NSDate *date = [[NSCalendar currentCalendar] dateFromComponents:comps];
...