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Updating packages in Emacs
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In order to automatically update the list of packages, only if there is no package list already, use the following:
(when (not package-archive-contents)
(package-refresh-contents))
In order to update all installed packages, typ...
Returning IEnumerable vs. IQueryable
...e difference is that IQueryable<T> is the interface that allows LINQ-to-SQL (LINQ.-to-anything really) to work. So if you further refine your query on an IQueryable<T>, that query will be executed in the database, if possible.
For the IEnumerable<T> case, it will be LINQ-to-objec...
Align DIV's to bottom or baseline
I'm trying to align a child div tag to the bottom or baseline of the parent div tag.
10 Answers
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What are some resources for getting started in operating system development? [closed]
One thing I've always wanted to do is develop my very own operating system (not necessarily fancy like Linux or Windows, but better than a simple boot loader which I've already done).
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How to save MailMessage object to disk as *.eml or *.msg file
How do I save MailMessage object to the disk? The MailMessage object does not expose any Save() methods.
5 Answers
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How to find the largest file in a directory and its subdirectories?
...sh commands. Our assignment involves performing various commands on a directory that has a number of folders under it as well.
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Writing to an Excel spreadsheet
I am new to Python. I need to write some data from my program to a spreadsheet. I've searched online and there seem to be many packages available (xlwt, XlsXcessive, openpyxl). Others suggest to write to a .csv file (never used CSV and don't really understand what it is).
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java.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has
...ception: Cannot call sendRedirect() after the response has been committed
To fix this, you need either to add a return; statement afterwards
protected void doXxx() {
if (someCondition) {
sendRedirect();
return;
}
forward();
}
... or to introduce an else block.
protected...
Javascript when to use prototypes
I'd like to understand when it is appropriate to use prototype methods in js. Should they always be used? Or are there cases where using them is not preferred and/or incurs a performance penalty?
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What is the proper REST response code for a valid request but an empty data?
...s not terribly useful as a response code for a browser (although according to the HTTP spec browsers do need to understand it as a 'don't change the view' response code).
204 No Content is however, very useful for ajax web services which may want to indicate success without having to return somethin...