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How to access outer class from an inner class?
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The methods of a nested class cannot directly access the instance attributes of the outer class.
Note that it is not necessarily the case that an instance of the outer class exists even when you have created an instance of the inner class.
In fact, it is often recommended against using nested...
Creating an R dataframe row-by-row
I would like to construct a dataframe row-by-row in R. I've done some searching, and all I came up with is the suggestion to create an empty list, keep a list index scalar, then each time add to the list a single-row dataframe and advance the list index by one. Finally, do.call(rbind,) on the list...
How can I add a box-shadow on one side of an element?
...eate a box-shadow on some block element, but only (for example) on its right side. The way I do it is to wrap the inner element with box-shadow into an outer one with padding-right and overflow:hidden; so the three other sides of the shadow are not visible.
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What's the difference between Git Revert, Checkout and Reset?
I am trying to learn how to restore or rollback files and projects to a prior state, and don't understand the difference between git revert , checkout , and reset . Why are there 3 different commands for seemingly the same purpose, and when should someone choose one over the other?
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Boolean vs boolean in Java
...e default value of the former is null while in the latter it's 0 . How about Boolean vs boolean ?
7 Answers
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How to change MySQL data directory?
Is it possible to change my default MySQL data directory to another path? Will I be able to access the databases from the old location?
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CSS selector with period in ID
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Classic. Just after digging through all the specs writing the question, I read through it some more and found there is an escape character. I've never needed it before, but the CSS spec does allow for backslash (\) escaping like most languages. Wh...
“ImportError: No module named” when trying to run Python script
I'm trying to run a script that launches, amongst other things, a python script. I get a ImportError: No module named ..., however, if I launch ipython and import the same module in the same way through the interpreter, the module is accepted.
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WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for 'jquery'. Please add a Scrip
I'm building a web application using Visual Studio 2012.
I'm attempting to add word count into my textbox.
However after adding the the javascript codes and the html codes. I receive the error as stated above.
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Which Java Collection should I use?
In this question How can I efficiently select a Standard Library container in C++11? is a handy flow chart to use when choosing C++ collections.
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