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Direct casting vs 'as' operator?
...o s, no matter what type o is.
Use 1 for most conversions - it's simple and straightforward. I tend to almost never use 2 since if something is not the right type, I usually expect an exception to occur. I have only seen a need for this return-null type of functionality with badly designed librar...
What is base 64 encoding used for?
I've heard people talking about "base 64 encoding" here and there. What is it used for?
18 Answers
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List of foreign keys and the tables they reference
...o find a query which will return me a list of the foreign keys for a table and the tables and columns they reference. I am half way there with
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What does the caret operator (^) in Python do?
I ran across the caret operator in python today and trying it out, I got the following output:
5 Answers
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What are all the common undefined behaviours that a C++ programmer should know about? [closed]
... the number (e.g. int64_t i = 1; i <<= 72 is undefined)
Types, Cast and Const
Casting a numeric value into a value that can't be represented by the target type (either directly or via static_cast)
Using an automatic variable before it has been definitely assigned (e.g., int i; i++; cout <...
How do you bind an Enum to a DropDownList control in ASP.NET?
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I probably wouldn't bind the data as it's an enum, and it won't change after compile time (unless I'm having one of those stoopid moments).
Better just to iterate through the enum:
Dim itemValues As Array = System.Enum.GetValues(GetType(Response))
Dim itemNames As Array...
Is there a conditional ternary operator in VB.NET?
In Perl (and other languages) a conditional ternary operator can be expressed like this:
3 Answers
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How do I calculate someone's age in Java?
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JDK 8 makes this easy and elegant:
public class AgeCalculator {
public static int calculateAge(LocalDate birthDate, LocalDate currentDate) {
if ((birthDate != null) && (currentDate != null)) {
return Period.betwee...
Draw radius around a point in Google map
I'm using the Google Maps API and have added markers. Now I want to add a 10 mile radius around each marker, meaning a circle that behaves appropriately while zooming. I have no idea how to do that and it seems it's not something common.
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Is it possible to create static classes in PHP (like in C#)?
I want to create a static class in PHP and have it behave like it does in C#, so
6 Answers
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