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How to see if an object is an array without using reflection?
...{
return obj!=null && obj.getClass().isArray();
}
This works for both object and primitive type arrays.
For toString take a look at Arrays.toString. You'll have to check the array type and call the appropriate toString method.
...
Is there any reason to use a synchronous XMLHttpRequest?
...ds progress. If a web application is given access to web workers, I could foresee developers using a dedicated web worker to make synchronous requests for, as Jonathan said, to ensure one request happens before another. With the current situation of one thread, it is a less than ideal design as it...
What does the smiley face “:)” mean in CSS?
...
From an article at javascriptkit.com, that's applied for IE 7 and earlier versions:
if you add a non-alphanumeric character such as an asterisk (*) immediately before a property name, the property will be applied in IE and not in other browsers.
Also there's a hack for &l...
LINQ, Where() vs FindAll()
...where it doesn't actually do the lookup until you need it -- using it in a foreach loop for example. FindAll is an immediate execution method.
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Is there XNOR (Logical biconditional) operator in C#?
...ied to booleans. And there are languages where it won't necessarily work. For example, in C, any non-zero scalar value is treated as true, so two "true" values can be unequal. But the question was tagged c#, which has, shall we say, well-behaved booleans.
Note also that this doesn't generalize to...
How do I get the name of captured groups in a C# Regex?
...n 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)...
Is it possible to have empty RequestParam values use the defaultValue?
... but you missed the point of my question which is in the title. I've asked for the ability to supply empty params /test?i= and since i is empty have the default value.
– Brett Ryan
Feb 20 '14 at 12:24
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Vim: Creating parent directories on save
...nd("<afile>")!~#'^\w\+:/' will prevent vim from creating directories for files like ftp://* and !isdirectory will prevent expensive mkdir call.
Update: sligtly better solution that also checks for non-empty buftype and uses mkdir():
function s:MkNonExDir(file, buf)
if empty(getbufvar(a:b...
What is the meaning of “__attribute__((packed, aligned(4))) ”
...
Before answering, I would like to give you some data from Wiki
Data structure alignment is the way data is arranged and accessed in computer memory. It consists of two separate but related issues: data alignment and data str...
Find first element in a sequence that matches a predicate
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To find first element in a sequence seq that matches a predicate:
next(x for x in seq if predicate(x))
Or (itertools.ifilter on Python 2):
next(filter(predicate, seq))
It raises StopIteration if there is none.
To return None if there is no such element:
next((x for x in seq if predicate(x...