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Why is [1,2] + [3,4] = “1,23,4” in JavaScript?
...t defined for arrays.
What happens is that Javascript converts arrays into strings and concatenates those.
Update
Since this question and consequently my answer is getting a lot of attention I felt it would be useful and relevant to have an overview about how the + operator behaves in general als...
How to remove all white space from the beginning or end of a string?
How can I remove all white space from the beginning and end of a string?
6 Answers
6
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get dictionary value by key
...
It's as simple as this:
String xmlfile = Data_Array["XML_File"];
Note that if the dictionary doesn't have a key that equals "XML_File", that code will throw an exception. If you want to check first, you can use TryGetValue like this:
string xmlfi...
What is the difference between single-quoted and double-quoted strings in PHP?
I'm a little confused why I see some code in PHP with string placed in single quotes and sometimes in double quotes.
12 Ans...
Convert an image (selected by path) to base64 string
How do you convert an image from a path on the user's computer to a base64 string in C#?
12 Answers
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Are parameters in strings.xml possible? [duplicate]
In my Android app I'am going to implement my strings with internationalization. I have a problem with the grammar and the way sentences build in different languages.
...
How to split a string and assign it to variables
In Python it is possible to split a string and assign it to variables:
9 Answers
9
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Initialization of an ArrayList in one line
... wrote, as it does not need to create a new List in any way:
ArrayList<String> list = new ArrayList<String>();
list.add("A");
list.add("B");
list.add("C");
The catch is that there is quite a bit of typing required to refer to that list instance.
There are alternatives, such as making...
Concat all strings inside a List using LINQ
Is there any easy LINQ expression to concatenate my entire List<string> collection items to a single string with a delimiter character?
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Is iterating ConcurrentHashMap values thread safe?
...t.Executors;
public class ConcurrentMapIteration
{
private final Map<String, String> map = new ConcurrentHashMap<String, String>();
private final static int MAP_SIZE = 100000;
public static void main(String[] args)
{
new ConcurrentMapIteration().run();
}
public Concur...