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Select second last element with css
...iv you are trying to select. As Frosty has mentioned, CSS3 isn't supported by older browsers or IE. Jquery is a much better option if you are concerned about cross-browser computability.
– Thomas
Mar 24 '11 at 12:11
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How to know the size of the string in bytes?
I'm wondering if I can know how long in bytes for a string in C#, anyone know?
3 Answers
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Adding up BigDecimals using Streams
...sn't filter for null values. The correct answer should prevent null values by using the Object::nonNull function as a predicate.
BigDecimal result = invoiceList.stream()
.map(Invoice::total)
.filter(Objects::nonNull)
.filter(i -> (i.getUnit_price() != null) && (i.getQuantity...
Will Dispose() be called in a using statement with a null object?
...ore Disposing the reference will be null-checked. You can examine yourself by viewing your code in Reflector.
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Running two projects at once in Visual Studio
... Works in VS 2015 CE as well.
– Payton Byrd
Nov 30 '15 at 3:36
2
Can't get this to ...
count number of lines in terminal output
... agree with this anymore. I feel like remembering that you can count lines by piping to wc -l is much more useful as you can use it with other programs than grep as well.
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Play audio with Python
...form, single function module with no dependencies for playing sounds.
Install via pip:
$ pip install playsound
Once you've installed, you can use it like this:
from playsound import playsound
playsound('/path/to/a/sound/file/you/want/to/play.mp3')
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Can bash show a function's definition?
... was, and if it was defined as a function it calls declare -f as explained by pmohandras.
To print out just the body of the function (i.e. the code) use sed:
type foobar | sed '1,3d;$d'
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Postgresql not creating db with “createdb” as superuser, yet not outputting errors [duplicate]
...s the statement isn't finished and waits for more input. This is indicated by the prompt changing from postgres=# to postgres-#. An extremely subtle change that I wish psql would do differently (more "prominent").
By entering the meta-command \list the "current" SQL statement is "aborted" without ...
How do I include negative decimal numbers in this regular expression?
How do I match negative numbers as well by this regular expression? This regex works fine with positive values, but I want it to also allow negative values e.g. -10, -125.5 etc.
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