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What guidelines for HTML email design are there? [closed]
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It's actually really hard to make a decent HTML email, if you approach it from a 'modern HTML and CSS' perspective.
For best results, imagine it's 1999.
Go back to tables for layout (or preferably - don't attempt any complex layout)
Be afraid of backgr...
LaTeX package for syntax highlighting of code in various languages
I am looking for a LaTeX package that does syntax highlighting on code. For example, right now I use the verbatim block to write code:
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What is the correct SQL type to store a .Net Timespan with values > 24:00:00?
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I'd store it in the database as a BIGINT and I'd store the number of ticks (eg. TimeSpan.Ticks property).
That way, if I wanted to get a TimeSpan object when I retrieve it, I could just do TimeSpan.FromTicks(value) which would be easy.
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How is the undo tree used in Vim?
... usage.
There are two ways to traverse the undo tree. One is to go "back in time". g+ and g- will traverse all of the nodes in the tree in chronological or reverse-chronological order (which can be a bit confusing, because it can jump arbitrarily between undo branches, but if you do g- long eno...
Testing Abstract Classes
... that you expect to extend in your application layer. And if you want to make sure that library code is tested, you need means to UT the concrete methods of abstract classes.
Personally, I use PHPUnit, and it has so called stubs and mock objects to help you testing this kind of things.
Straight fr...
What is an idempotent operation?
...t.discard(x)
Idempotent operations are often used in the design of network protocols, where a request to perform an operation is guaranteed to happen at least once, but might also happen more than once. If the operation is idempotent, then there is no harm in performing the operation two or more t...
Difference between pre-increment and post-increment in a loop?
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a++ is known as postfix.
add 1 to a, returns the old value.
++a is known as prefix.
add 1 to a, returns the new value.
C#:
string[] items = {"a","b","c","d"};
int i = 0;
foreach (string item in items)
{
Console.WriteLine(+...
How do I change the text of a span element using JavaScript?
...lementById("myspan").textContent="newtext";
While older browsers may not know textContent, it is not recommended to use innerHTML as it introduces an XSS vulnerability when the new text is user input (see other answers below for a more detailed discussion):
//POSSIBLY INSECURE IF NEWTEXT BECOMES ...
How to include a quote in a raw Python string
...e single quotes as the delimiter instead:
r'what"ever'
If you need both kinds of quotes in your string, use a triple-quoted string:
r"""what"ev'er"""
If you want to include both kinds of triple-quoted strings in your string (an extremely unlikely case), you can't do it, and you'll have to use ...
HTML5 Email Validation
It is said "With HTML5, we need no more js or a server side code to check if the user's input is a valid email or url address"
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