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What does SQL clause “GROUP BY 1” mean?
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It means to group by the first column regardless of what it's called. You can do the same with ORDER BY.
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Persistent invalid graphics state error when using ggplot2
... but do you have any idea as to why it does?
– Pedro Cavalcante
Sep 14 '18 at 20:38
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@PedroCaval...
How do I create a datetime in Python from milliseconds?
I can create a similar Date object in Java by java.util.Date(milliseconds) . How do I create the comparable in Python?
5 A...
How should I copy Strings in Java?
..., the backup variable still contains the original value "hello" (this is because of String's immutability right?).
5 Answer...
Suppress/ print without b' prefix for bytes in Python 3
Just posting this so I can search for it later, as it always seems to stump me:
4 Answers
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What is the difference between canonical name, simple name and class name in Java Class?
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Purpose of asterisk before a CSS property
The following is taken from the Yahoo CSS reset. Can someone please explain the purpose of the asterisks?
6 Answers
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Using Moq to mock an asynchronous method for a unit test
I am testing a method for a service that makes a Web API call. Using a normal HttpClient works fine for unit tests if I also run the web service (located in another project in the solution) locally.
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Difference between val() and text()
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matched elements. This method works on
both HTML and XML documents. Cannot be
used on input elements. For input
field text use the val attribute.
.val()
Get the content of the value attribute
of the first matched element
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How to get the PATH environment-variable separator in Python?
When multiple directories need to be concatenated, as in an executable search path, there is an os-dependent separator character. For Windows it's ';' , for Linux it's ':' . Is there a way in Python to get which character to split on?
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