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Are Javascript arrays sparse?
... I don't think you actually get a dense array if you say something like foo = new Array(10000). However, this is supposed to work: foo = Array.apply(null, {length: 10});.
– doubleOrt
Oct 2 '17 at 11:04
...
C++ map access discards qualifiers (const)
...sting. I would think C++ would distinguish between lvalue operator[] (e.g. foo[bar] = baz) and rvalue operator[] (e.g. x = foo[bar]) - the latter could certainly be const.
– Claudiu
May 12 '14 at 18:27
...
How do I rename all files to lowercase?
...
Be careful. If you have files named foo.txt and FOO.TXT, this could clobber one of them.
– Keith Thompson
Oct 16 '11 at 21:10
1
...
Rails render partial with block
...irty test) if you assign it to a variable first and then output it.
<% foo = render :partial => '/shared/panel', :locals =>{:title => "Some Title"} do %>
<p>Here is some content to be rendered inside the panel</p>
<% end %>
<%= foo %>
...
How do I pass command-line arguments to a WinForms application?
...
input: "whatever.exe -v foo /lol nisp". Output: args[0] = "-v"; args[1] = "foo"; args[2] = "/lol"; args[3] = "nisp"; What could be easier?
– Callum Rogers
Jul 24 '09 at 19:22
...
List of remotes for a Git repository?
...suming you are not.
As a practical example, assume there was a repository foo.git on the server.
Someone in their wisdom decides they need to change it to foo2.git. It would
really be nice to do a list of a git directory on the server. And yes, I see
the problems for git. It would still be nice to ...
Checking if a double (or float) is NaN in C++
...hat up", consider
#include <limits>
#include <assert.h>
void foo( double a, double b )
{
assert( a != b );
}
int main()
{
typedef std::numeric_limits<double> Info;
double const nan1 = Info::quiet_NaN();
double const nan2 = Info::quiet_NaN();
foo( nan1, nan2 )...
Why is Spring's ApplicationContext.getBean considered bad?
...ime, but in JSR-330/Guice/Dagger, you'd do this by injecting a Provider<Foo> instead of a Foo and calling provider.get() every time you need a new instance. No reference to the container itself, and you can easily create a Provider for testing.
– ColinD
J...
PDO Prepared Inserts multiple rows in single query
...
Two possible approaches:
$stmt = $pdo->prepare('INSERT INTO foo VALUES(:v1_1, :v1_2, :v1_3),
(:v2_1, :v2_2, :v2_3),
(:v2_1, :v2_2, :v2_3)');
$stmt->bindValue(':v1_1', $data[0][0]);
$stmt->bindValue(':v1_2', $data[0][1]);
$stmt->bindValue(':v1_3', $data[0][2]);
// etc....
How to make the tab character 4 spaces instead of 8 spaces in nano?
...le, to set the tab size to 4, replace tabs with spaces, and edit the file "foo.txt", you would run the command:
nano -ET4 foo.txt
Config file
From man nanorc:
set tabsize n
Use a tab size of n columns. The value of n must be greater than 0.
The default value is 8.
set/unset tabstospaces...