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Immutable array in Java
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By the way, Arrays.asList gives an unmodifiable list
– mauhiz
Oct 26 '15 at 14:42
3
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handlerbars.js check if list is empty
...ag (with <li>s inside), you don't want the empty state to be wrapped by the <ul>.
– Leonardo Raele
Jul 15 '19 at 20:41
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Problems with Android Fragment back stack
...we keep in mind that .replace() is equal with .remove().add() that we know by the documentation:
Replace an existing fragment that was added to a container. This is essentially the same as calling remove(Fragment) for all currently added fragments that were added with the same containerViewId an...
AngularJS - difference between pristine/dirty and touched/untouched
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AngularJS Developer Guide - CSS classes used by AngularJS
@property {boolean} $untouched True if control has not lost focus yet.
@property {boolean} $touched True if control has lost focus.
@property {boolean} $pristine True if user has not interacted with th...
Is there a way to make ellipsize=“marquee” always scroll?
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By the way, we actually had problems with this solution, since it messes up stateful drawables: if you change drawables with focus-in/focus-out, then this will break. Took us almost an hour of debugging until we realized this...
In what cases will HTTP_REFERER be empty
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entered the site URL in browser address bar itself.
visited the site by a browser-maintained bookmark.
visited the site as first page in the window/tab.
clicked a link in an external application.
switched from a https URL to a http URL.
switched from a https URL to a different https URL.
has s...
minimize app to system tray
I have a Windows forms app powered by C# and Visual Studio 2010.
9 Answers
9
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gcc makefile error: “No rule to make target …”
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In my experience, this error is frequently caused by a spelling error.
I got this error today.
make[1]: *** No rule to make target maintenaceDialog.cpp', needed bymaintenaceDialog.o'. Stop.
In my case the error was simply a spelling error. The word MAINTENANCE was m...
Convert LocalDate to LocalDateTime or java.sql.Timestamp
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tl;dr
The Joda-Time project is in maintenance-mode, now supplanted by java.time classes.
Just use java.time.Instant class.
No need for:
LocalDateTime
java.sql.Timestamp
Strings
Capture current moment in UTC.
Instant.now()
To store that moment in database:
myPreparedStatement.set...
Iterate over object attributes in python
...__', 'bar', 'foo', 'func']
You can always filter out the special methods by using a list comprehension.
>>> [a for a in dir(obj) if not a.startswith('__')]
['bar', 'foo', 'func']
or if you prefer map/filters.
>>> filter(lambda a: not a.startswith('__'), dir(obj))
['bar', 'foo...