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How can I default a parameter to Guid.Empty in C#?

...uct is not a primitive type. For a list of all primitive types in .NET see http://msdn.microsoft.com/en-gb/library/system.typecode.aspx (note that enum usually inherits int, which is a primitive) But new Guid() is not a constant too! I'm not saying it needs a constant. It needs something that can ...
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How to check for valid email address? [duplicate]

....com, is a valid email address. I've had some luck with the lepl package (http://www.acooke.org/lepl/). It can validate email addresses as indicated in RFC 3696: http://www.faqs.org/rfcs/rfc3696.html Found some old code: import lepl.apps.rfc3696 email_validator = lepl.apps.rfc3696.Email() if not...
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How to declare constant map

... may emulate a map with a closure: package main import ( "fmt" ) // http://stackoverflow.com/a/27457144/10278 func romanNumeralDict() func(int) string { // innerMap is captured in the closure returned below innerMap := map[int]string{ 1000: "M", 900: "CM", 50...
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Separate Back Stack for each tab in Android using Fragments

...lt;?xml version="1.0" encoding="utf-8"?> <TabHost xmlns:android="http://schemas.android.com/apk/res/android" android:id="@android:id/tabhost" android:layout_width="fill_parent" android:layout_height="fill_parent"> <LinearLayout android:orientation="vertical" ...
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How do you plot bar charts in gnuplot?

...I recommend Derek Bruening's bar graph generator Perl script. Available at http://www.burningcutlery.com/derek/bargraph/ share | improve this answer | follow |...
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How to check task status in Celery?

... the task that will effect the goal, and sends to the client that made the HTTP request a response that indicates it should wait for a result. The variable names and hyperlinks above are for Celery 4.x. In 3.x the corresponding variables and hyperlinks are: CELERY_TRACK_STARTED, CELERY_IGNORE_RES...
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How do I make JavaScript beep?

...ty Data URI is supported on almost every browser now. More information on http://caniuse.com/datauri Demo http://jsfiddle.net/7EAgz/ Conversion Tool And here is where you can convert mp3 or wav files into Data URI format: https://dopiaza.org/tools/datauri/index.php ...
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Can we write our own iterator in Java?

...} } // will print 1, 2, 3, 4, 5 The foreach documentation is located at http://download.oracle.com/javase/1,5.0/docs/guide/language/foreach.html. You can take a look at a more complete implementation at my personal practice google code. Now, to get the effects of what you need I think you need t...
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Maximum Java heap size of a 32-bit JVM on a 64-bit OS

...the max heap size can be higher, approaching 4G on many Solaris systems. (http://www.oracle.com/technetwork/java/hotspotfaq-138619.html#gc_heap_32bit) share | improve this answer | ...
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SQL DELETE with INNER JOIN

...E npc.type = "monster"; You can also check the MySQL delete syntax here: http://dev.mysql.com/doc/refman/5.0/en/delete.html share | improve this answer | follow ...