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Ruby: What is the easiest way to remove the first element from an array?
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One gotcha to watch out for: if the array is empty it returns nil: [][1..-1] => nil and not [].
– Mohamad
Jul 16 '13 at 1:26
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What's a reliable way to make an iOS app crash?
I want to test my app's crash reporting out in the field by deliberately having it crash when the user performs a particular action that a real user is unlikely to do accidentally.
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Getting root permissions on a file inside of vi? [closed]
...auses Vim to prompt for password but not accept input. It eventually times out on two attempts and says: sudo: 1 incorrect password attempt
– cmcginty
Feb 24 '09 at 3:14
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jQuery to retrieve and set selected option value of html select element
... of the element and also check your markup validates at here at W3c.
Without a valid dom jQuery cannot work correctly with the selectors.
If the id's are correct and your dom validates then the following applies:
To Read Select Option Value
$('#selectId').val();
To Set Select Option Value
$(...
Add 10 seconds to a Date
...econds() + 10);
For a list of the other Date functions, you should check out MDN
setSeconds will correctly handle wrap-around cases:
var d;
d = new Date('2014-01-01 10:11:55');
alert(d.getMinutes() + ':' + d.getSeconds()); //11:55
d.setSeconds(d.getSeconds() + 10);
alert(d.getMinutes()...
What is the result of % in Python?
What does the % in a calculation? I can't seem to work out what it does.
19 Answers
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Get folder name from full file path
...me msdn.microsoft.com/en-us/library/… -- but will not be able to test it out until tomorrow.
– Don Cheadle
Aug 1 '18 at 3:24
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Generate fixed length Strings filled with whitespaces
... This will not limit the string to length 15. If it is longer, produced output will also be longer than 15
– misterti
Jun 27 '16 at 11:48
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Xcode: Build Failed, but no error messages
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Figured it out. On the tab with three lines in a speech bubble, it shows a build log. I guess my storyboard file had become corrupt during the last git pull.
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Is it possible to read from a InputStream with a timeout?
...er of bytes that can be read (or skipped over)
from this input stream without blocking by the next invocation of a method for
this input stream.
An estimate is unavoidable due to timing/staleness. The figure can be a one-off underestimate because new data are constantly arriving. However it al...