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Best way to test for a variable's existence in PHP; isset() is clearly broken
...ou're actually checking an array element, it makes much more sense: isset($foo[$bar]) becomes array_key_exists($bar, $foo)
– Arild
Aug 25 '14 at 14:12
...
Pass a local file in to URL in Java
...and then lists the host (generally omitted), followed by "/" and the path "foo/bar" (generally meant to be read as an absolute path). Thus "file:///foo/var". An URI that looks like "file:/foo/bar" is incorrect. See also: file URI scheme
– David Tonhofer
Sep 2 '...
Are the days of passing const std::string & as a parameter over?
...r, it also depends on what you use.
Lets consider next functions :
bool foo1( const std::string v )
{
return v.empty();
}
bool foo2( const std::string & v )
{
return v.empty();
}
These functions are implemented in a separate compilation unit in order to avoid inlining. Then :
1. If you ...
What is the Scala identifier “implicitly”?
... a type parameter A that requires an implicit parameter of type M[A]:
def foo[A](implicit ma: M[A])
can be rewritten as:
def foo[A: M]
But what's the point of passing the implicit parameter but not naming it? How can this be useful when implementing the method foo?
Often, the implicit paramet...
Why do this() and super() have to be the first statement in a constructor?
...ic methods. What I wanted to do looked something like this:
public class Foo extends Baz {
private final Bar myBar;
public Foo(String arg1, String arg2) {
// ...
// ... Some other stuff needed to construct a 'Bar'...
// ...
final Bar b = new Bar(arg1, arg2);
super(b.baz())...
Set value of textarea in jQuery
...
val(foo) works for me (jQuery 1.9.1). Using text(foo) loses to update textarea content loses the linebreaks on IE, using val(foo) preserves them.
– Tim
Sep 11 '13 at 9:21
...
How to show changed file name only with git log? [duplicate]
...puts a list of files only and their state (added, modified, deleted):
A foo/bar/xyz/foo.txt
M foo/bor/bar.txt
...
The -k2,2 option for sort, makes it sort by file path instead of the type of change (A, M, D,).
share
...
Python multiprocessing pool.map for multiple arguments
In the Python multiprocessing library, is there a variant of pool.map which supports multiple arguments?
19 Answers
...
How do you print in a Go test using the “testing” package?
... issue 24929
Consider the following (silly) automated tests:
func TestFoo(t *testing.T) {
t.Parallel()
for i := 0; i < 15; i++ {
t.Logf("%d", i)
time.Sleep(3 * time.Second)
}
}
func TestBar(t *testing.T) {
t.Parallel()
for i := 0; i < 15; i++ {
t...
Is there a “standard” format for command line/shell help text?
If not, is there a de facto standard? Basically I'm writing a command line help text like so:
8 Answers
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