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Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]
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+100
Edit: This is a more complete version that shows more differences between [ (aka test) and [[.
The following table shows that whethe...
jQuery remove all list items from an unordered list
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280
$("ul").empty() works fine. Is there some other error?
$('input').click(function() {
$('...
Can I use Objective-C blocks as properties?
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307
@property (nonatomic, copy) void (^simpleBlock)(void);
@property (nonatomic, copy) BOOL (^block...
What is the difference between indexOf() and search()?
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edited Mar 12 '12 at 10:42
sshow
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answered De...
Center image in table td in CSS
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ScottScott
19.2k88 gold badges4040 silver badges5353 bronze badges
23
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Add line break within tooltips
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Just use the entity code 
 for a linebreak in a title attribute.
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Case insensitive searching in Oracle
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Since 10gR2, Oracle allows to fine-tune the behaviour of string comparisons by setting the NLS_COMP and NLS_SORT session parameters:
SQL> SET HEADING OFF
SQL> SELECT *
2 FROM NLS_SESSION_PARAMETERS
3 WHERE PARAMETER IN ...
Why should text files end with a newline?
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Because that’s how the POSIX standard defines a line:
3.206 Line
A sequence of zero or more non- <newline> characters plus a terminating <newline> character.
Therefore, lines not ending in a newline character aren't considered actual lines. That's why some progra...
Twitter image encoding challenge [closed]
If a picture's worth 1000 words, how much of a picture can you fit in 140 characters?
15 Answers
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How to do a JUnit assert on a message in a logger
...og = appender.getLog();
final LoggingEvent firstLogEntry = log.get(0);
assertThat(firstLogEntry.getLevel(), is(Level.INFO));
assertThat((String) firstLogEntry.getMessage(), is("Test"));
assertThat(firstLogEntry.getLoggerName(), is("MyTest"));
}
}
class TestAppend...