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How to check that an object is empty in PHP?
...($obj), TRUE)` can be slow because
// you're converting to and from a JSON string.
// I don't know another simple way to do a deep conversion from object to array
$array = json_decode(json_encode($obj), TRUE);
if ( !array_filter($array) )
{
// empty or all properties falsey
}
Old Answer (sim...
How to swap two variables in JavaScript
...t; the values are auto-cast to int32s. This means it can work with numeric strings, Booleans (0/1), null (0), and empty arrays/objects (0). Though the original type isn't preserved, so affected Booleans wouldn't work with typeof a == 'boolean' or a === false, for example. Real numbers work, except t...
Java time-based map/cache with expiring keys [closed]
...sing the == semantics, not equals(). I lost 30 minutes figuring out why my String-keyed cache was not working :)
– Laurent Grégoire
Nov 21 '13 at 10:45
3
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How to do what head, tail, more, less, sed do in Powershell? [closed]
... typed structure, eg. dates remain DateTime instances – rather than just strings, which each command needs to parse itself, much of sed and other such programs are redundant.
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How to get Bitmap from an Uri?
...for at better solution.
.
.
You could try this:
public Bitmap loadBitmap(String url)
{
Bitmap bm = null;
InputStream is = null;
BufferedInputStream bis = null;
try
{
URLConnection conn = new URL(url).openConnection();
conn.connect();
is = conn.getInputS...
How do I specify the exit code of a console application in .NET?
... InvalidLogin = 1,
InvalidFilename = 2,
UnknownError = 10
}
int Main(string[] args) {
return (int)ExitCode.Success;
}
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Javascript Array.sort implementation?
... quicksort (usually introsort).
Contiguous arrays of non-numeric type are stringified and sorted using mergesort, if available (to obtain a stable sorting) or qsort if no merge sort is available.
For other types (non-contiguous arrays and presumably for associative arrays) WebKit uses either selec...
How can I run an external command asynchronously from Python?
...d gives easy ways to have callbacks when your process spits out predefined strings, and generally makes interacting with the process much easier.
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How to mock void methods with Mockito
...thodName();
Presuming that you are looking at mocking the setter setState(String s) in the class World below is the code uses doAnswer method to mock the setState.
World mockWorld = mock(World.class);
doAnswer(new Answer<Void>() {
public Void answer(InvocationOnMock invocation) {
O...
XPath - Selecting elements that equal a value
...
The XPath spec. defines the string value of an element as the concatenation (in document order) of all of its text-node descendents.
This explains the "strange results".
"Better" results can be obtained using the expressions below:
//*[text() = 'qwe...