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Generating CSV file for Excel, how to have a newline inside a value
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You should have space characters at the start of fields ONLY where the space characters are part of the data. Excel will not strip off leading spaces. You will get unwanted spaces in your headings and data fields. Worse, the " that should be "protecting" that line-...
Array slices in C#
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ArraySegment is IList and IEnumerable starting from .Net 4.5. Too bad for older version users..
– Todd Li
Dec 13 '12 at 21:31
6
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How to stop an animation (cancel() does not work)
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Call clearAnimation() on whichever View you called startAnimation().
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Swift days between two NSDates
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// Replace the hour (time) of both dates with 00:00
let date1 = calendar.startOfDayForDate(firstDate)
let date2 = calendar.startOfDayForDate(secondDate)
let flags = NSCalendarUnit.Day
let components = calendar.components(flags, fromDate: date1, toDate: date2, options: [])
components.day // This...
Node.js vs .Net performance
...you run out of threads. The problem with the ASP.NET model comes when you start making I/O requests that block the thread (call to a DB, make an http request to a service, read a file from disk). These blocking requests mean that your valuable thread from the thread pool is doing nothing. The more ...
Multiple Updates in MySQL
...')');
if($TestNum==0)
{
$TestName='Transaction';
$Start=microtime(true);
$DoQuery('START TRANSACTION');
for($i=1;$i<=$NumRows;$i++)
$DoQuery('UPDATE '.$TableName.' SET i2='.(($i+5)*1000).' WHERE i1='.$i);
$DoQuery('COMMIT');
}
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How do I calculate someone's age in Java?
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Modern answer and overview
a) Java-8 (java.time-package)
LocalDate start = LocalDate.of(1996, 2, 29);
LocalDate end = LocalDate.of(2014, 2, 28); // use for age-calculation: LocalDate.now()
long years = ChronoUnit.YEARS.between(start, end);
System.out.println(years); // 17
Note that the exp...
A gentle tutorial to Emacs/Swank/Paredit for Clojure
... counterpart), clojure-mode, Paredit and, of course, the Clojure jar for a start, then perhaps some extras among which Leiningen would perhaps be the most notable. Once you do set it all up, you'll have -- within Emacs -- all the workflow / editing features you mention in the question.
Basic setup:...
Super-simple example of C# observer/observable with delegates
I recently started digging into C# but I can't by my life figure out how delegates work when implementing the observer/observable pattern in the language.
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Split string with delimiters in C
...==.
For that pattern to work, token and str both have type char *. If you started with a string literal, then you'd want to make a copy of it first:
// More general pattern:
const char *my_str_literal = "JAN,FEB,MAR";
char *token, *str, *tofree;
tofree = str = strdup(my_str_literal); // We own s...