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Does the Go language have function/method overloading?
I'm porting a C library to Go. A C function (with varargs) is defined like this:
3 Answers
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Global variables in Java
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To define Global Variable you can make use of static Keyword
public class Example {
public static int a;
public static int b;
}
now you can access a and b from anywhere
by calling
Example.a;
Example.b;
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BigDecimal equals() versus compareTo()
... (thus 2.0 is not equal to 2.00 when compared by this method).
In other words: equals() checks if the BigDecimal objects are exactly the same in every aspect. compareTo() "only" compares their numeric value.
As to why equals() behaves this way, this has been answered in this SO question.
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How do I get the name of captured groups in a C# Regex?
... iterate over those, using the names as keys into the groups collection.
For example,
GroupCollection groups = regex.Match(line).Groups;
foreach (string groupName in regex.GetGroupNames())
{
Console.WriteLine(
"Group: {0}, Value: {1}",
groupName,
groups[groupName].Value);...
Why check both isset() and !empty()
...ce between isset and !empty . If I do this double boolean check, is it correct this way or redundant? and is there a shorter way to do the same thing?
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Appending the same string to a list of strings in Python
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The simplest way to do this is with a list comprehension:
[s + mystring for s in mylist]
Notice that I avoided using builtin names like list because that shadows or hides the builtin names, which is very much not good.
Also, if you do not actually need a list, but just need an iterator, a gener...
How to run test methods in specific order in JUnit4?
I want to execute test methods which are annotated by @Test in specific order.
18 Answers
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How do I use brew installed Python as the default Python?
I try to switch to Homebrew (after using fink and macport) on Mac OS X 10.6.2. I have installed python 2.7 with
19 Answers...
How to respond with HTTP 400 error in a Spring MVC @ResponseBody method returning String?
I'm using Spring MVC for a simple JSON API, with @ResponseBody based approach like the following. (I already have a service layer producing JSON directly.)
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Check if a value is an object in JavaScript
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UPDATE:
This answer is incomplete and gives misleading results. For example, null is also considered of type object in JavaScript, not to mention several other edge cases. Follow the recommendation below and move on to other "most upvoted (and correct!) answer":
typeof yourVariable === 'ob...