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How do I concatenate strings in Swift?
...g) so you can change the value of it. But this has been answered several times on Stack Overflow, (see difference between let and var).
Note
In reality let and var are very different from NSString and NSMutableString but it helps the analogy.
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How to validate an email address using a regular expression?
... grammar and passes several tests using grep -Po, including cases domain names, IP addresses, bad ones, and account names with and without quotes.
Correcting the 00 bug in the IP pattern, we obtain a working and fairly fast regex. (Scrape the rendered version, not the markdown, for actual code.)
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How do I include a newline character in a string in Delphi?
...phi 2009 (notice the use of AnsiChar and AnsiString). (Line wrap added by me.)
So if you want to make your TLabel wrap, make sure AutoSize is set to true, and then use the following code:
label1.Caption := 'Line one'+sLineBreak+'Line two';
Works in all versions of Delphi since sLineBreak was in...
O(nlogn) Algorithm - Find three evenly spaced ones within binary string
...gorithms test yesterday, and I can't figure out the answer. It is driving me absolutely crazy, because it was worth about 40 points. I figure that most of the class didn't solve it correctly, because I haven't come up with a solution in the past 24 hours.
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Understanding typedefs for function pointers in C
... other peoples' code which had typedefs for pointers to functions with arguments. I recall that it took me a while to get around to such a definition while trying to understand a numerical algorithm written in C a while ago. So, could you share your tips and thoughts on how to write good typedefs fo...
How to check the differences between local and github before the pull [duplicate]
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git pull is really equivalent to running git fetch and then git merge. The git fetch updates your so-called "remote-tracking branches" - typically these are ones that look like origin/master, github/experiment, etc. that you see with git branch -r. These are like a cache of the state of...
Is there a way to remove the separator line from a UITableView?
...n mode. This is done automatically in grouped, but this also changes the dimensions of the table in a way that is hard to measure. I have set the seperator line color to colorClear. But this does not completely solve the problem.
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CodeIgniter - accessing $config variable in view
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How to set a bitmap from resource
...pFactory.decodeResource(getResources(), R.drawable.image);
The first parameter, Resources, is required. It is normally obtainable in any Context (and subclasses like Activity).
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Get all inherited classes of an abstract class [duplicate]
...this out of the box. Here's how I do it.
public static class ReflectiveEnumerator
{
static ReflectiveEnumerator() { }
public static IEnumerable<T> GetEnumerableOfType<T>(params object[] constructorArgs) where T : class, IComparable<T>
{
List<T> objects =...