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Long list of if statements in Java
...ap.get(value).exec();
EDIT
you can also add special commands such as UnknownCommand or NullCommand, but you need a CommandMap that handles these corner cases in order to minimize client's checks.
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running Rails console in production
I have just gone live with my first Rails site, but now I have a problem. When I run the project in development mode on my IDE I can run the console to something like:
...
What's the best way to do a backwards loop in C/C#/C++?
....
Instead of doing
(sizeof a / sizeof *a)
Change your code so that it now does
(sizeof array_size(a))
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CSS to stop text wrapping under image
...ing to change anything.
But in both cases, since you have a block element now, you will need to float the image so that your text doesn't all go below your image.
li p{width: 100px; margin-left: 20px}
.fav_star {width: 20px;float:left}
P.S. Instead of float:left on the image, you can also put fl...
Any reason why scala does not explicitly support dependent types?
...w that Scala is a lot closer to these other languages than is typically acknowledged.
Despite the terminology, dependent sum types (also known as Sigma types) are simply a pair of values where the type of the second value is dependent on the first value. This is directly representable in Scala,
sc...
Best way to give a variable a default value (simulate Perl ||, ||= )
... = $bar ?: $baz;
Which assigns $bar if it's not an empty value (I don't know how this would be different in PHP from Perl), otherwise $baz, and is the same as this in Perl and older versions of PHP:
$foo = $bar ? $bar : $baz;
But PHP does not have a compound assignment operator for this (that i...
What is the best way to clone/deep copy a .NET generic Dictionary?
...ill give you a deep copy of the Dictionary and all the items inside of it. Now you can create a deep copy of any object that is marked as [Serializable] without writing any special code.
Here are two methods that will use Binary Serialization. If you use these methods you simply call
object deepc...
Overflow:hidden dots at the end
...
overflow: hidden;
width: 160px;
height: 1.2em;
white-space: nowrap;
}
<div class="cut-text">
I like big buts and I can not lie.
</div>
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Why does a RegExp with global flag give wrong results?
...oo Bar'));
re.lastIndex = 0;
result.push(re.test('Foo Bar'));
// result is now [true, true]
Having said that it may be more readable to create a new RegExp object each time (overhead is minimal as the RegExp is cached anyway):
result.push((/Foo B/gi).test(stringA));
result.push((/Foo B/gi).test(s...
Importing a CSV file into a sqlite3 database table using Python
...n to a file on disk is left as an exercise for the reader ... but there is now a two-liner made possible by the pandas library
df = pandas.read_csv(csvfile)
df.to_sql(table_name, conn, if_exists='append', index=False)
shar...