... email package is the easiest: public static boolean isValidEmailAddress(String email) { boolean result = true; try { InternetAddress emailAddr = new InternetAddress(email); emailAddr.validate(); } catch (AddressException ex) { result = false; } return result; } ...

... var link = document.createElement('a'); if (typeof link.download === 'string') { link.href = uri; link.download = filename; //Firefox requires the link to be in the body document.body.appendChild(link); //simulate click link.click(); //remove the lin...

...dard library classes are final, for example java.lang.System and java.lang.String. All methods in a final class are implicitly final. A final method can't be overridden by subclasses. This is used to prevent unexpected behavior from a subclass altering a method that may be crucial to the function or...

... timeout.</param> public static void Connect(this Socket socket, string host, int port, TimeSpan timeout) { AsyncConnect(socket, (s, a, o) => s.BeginConnect(host, port, a, o), timeout); } /// <summary> /// Connects the specified socket. /// </summar...

...agnostics; public class MyData { public int A { get; set; } public string B { get; set; } public DateTime C { get; set; } public decimal D { get; set; } public string E { get; set; } public int F { get; set; } } static class Program { static void RunTest(List<MyData&g...

...ack-box was not customizable, it didn't support mini-dump files or Unicode strings, and it didn't have any server. In spite of these limitations, it was an excellent starting point because I knew exactly what kind of a tool I wanted. I started working on my own tool in the hope of making it flexible...

...I have to adjust the Rprofile.site anyway (using sum contrasts, adding the extra code for Tinn-R, these things), so it's not really extra work. It just takes extra time installing all packages anew. This last bit is equivalent to what is given in the original question as a solution. I just don't ne...

...es themselves don't have members. What you wrote is the equivalent to std::string.clear. std::string is a type, so you can't use . on it. You use . on an instance of a class. Unfortunately, enums are magical and so the analogy stops there. Because with a class, you can do std::string::clear to g...

... What if you end up using .ToString() on the enum a lot, any value in using a class with const strings that looks and acts like an enum but circumvents a call to ToString()? Example – Sinjai Jan 29 '18 at 0:28 ...

...he sdk manager and download and install the following files located under "extras": Android support repository, Google play services, Google repository. Restart android studio and open the build gradle file. You must modify your build.gradle file to look like this under dependencies: dependencies ...