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How do I use NSTimer?
...ou also want the option of invalidating the timer—perhaps even before it starts. In this case, you do need to keep a reference to the timer, so that you can send it an invalidate message whenever appropriate. If you create an unscheduled timer (see “Unscheduled Timers”), then you must maintain...
Convert Year/Month/Day to Day of Year in Python
...
note: this starts counting at 1
– Mehdi Nellen
Nov 21 '19 at 10:20
2
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How to set default browser window size in Protractor/WebdriverJS
... ChromeOptions) object.
Since the automation extension is only loaded at startup, there are
some commands that ChromeDriver does not support when working with
existing sessions through remote debugging.
If you see the error "operation not supported when using remote
debugging", try rewr...
What to do Regular expression pattern doesn't match anywhere in string?
...y @input_tags = $html =~ m/
(
<input # Starts with "<input"
(?=[^>]*?type="hidden") # Use lookahead to make sure that type="hidden"
[^>]+ # Grab the rest of the tag...
\/> # ...e...
Changing Locale within the app itself
.... That's why I wanted to clarify the issue here. I used this question as a starting point for my own locale switching code and found out that the method is not exactly correct. It works, but only until any configuration change (e.g. screen rotation) and only in that particular Activity. Playing with...
Android activity life cycle - what are all these methods for?
...droid activity? Why are so many similar sounding methods ( onCreate() , onStart() , onResume() ) called during initialization, and so many others ( onPause() , onStop() , onDestroy() ) called at the end?
...
Cross browser JavaScript (not jQuery…) scroll to top animation
...ow.scrollTo(0, scrollTargetY);
}
}
// call it once to get started
tick();
}
// scroll it!
scrollToY(0, 1500, 'easeInOutQuint');
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How can I match on an attribute that contains a certain string?
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mjv's answer is a good start but will fail if atag is not the first classname listed.
The usual approach is the rather unwieldy:
//*[contains(concat(' ', @class, ' '), ' atag ')]
this works as long as classes are separated by spaces only, and...
inserting characters at the start and end of a string
...
>>> s = "0123456789"
>>> s[2]
'2'
Calling range with start and end position:
>>> s[4:6]
'45'
Calling part of a string before that position:
>>> s[:6]
'012345'
Calling part of a string after that position:
>>> s[4:]
'456789'
Inserting your str...
What's better at freeing memory with PHP: unset() or $var = null
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<?php
$start = microtime(true);
for ($i = 0; $i < 10000000; $i++) {
$a = 'a';
$a = NULL;
}
$elapsed = microtime(true) - $start;
echo "took $elapsed seconds\r\n";
$start = microtime(true);
for ($i = 0; $i < 10000000...