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Type converting slices of interfaces
...n: https://github.com/golang/go/wiki/InterfaceSlice
var dataSlice []int = foo()
var interfaceSlice []interface{} = make([]interface{}, len(dataSlice))
for i, d := range dataSlice {
interfaceSlice[i] = d
}
share
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“Java DateFormat is not threadsafe” what does this leads to?
...ava DateFormat not being thread safe and I understand the concept theoretically.
11 Answers
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BAT file: Open new cmd window and execute a command in there
...
If you're using this to run a rails server you actually don't need to type cmd. You can just type start rails s.
– fbonetti
Jun 27 '13 at 17:51
add a c...
Call Activity method from adapter
Is it possible to call method that is defined in Activity from ListAdapter ?
8 Answers
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How can I pass a parameter to a setTimeout() callback?
...tipage/…). However, using a string instead of a function object is generally considered poor style because it is essentially a form of delayed eval().
– Miles
Jul 27 '09 at 21:41
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How to create arguments for a Dapper query dynamically
...ffer a full example here.
string query = "SELECT * FROM MyTableName WHERE Foo = @Foo AND Bar = @Bar";
Dictionary<string, object> dictionary = new Dictionary<string, object>();
dictionary.Add("@Foo", "foo");
dictionary.Add("@Bar", "bar");
var results = connection.Query<MyTableName&g...
php is null or empty?
...
As is shown in the following table, empty($foo) is equivalent to $foo==null and is_null($foo) has the same function of $foo===null. The table also shows some tricky values regarding the null comparison. (ϕ denotes an uninitialized variables. )
empty is_n...
Why are empty catch blocks a bad idea? [closed]
...-catch , which people (including Jon Skeet) say empty catch blocks are a really bad idea? Why this? Is there no situation where an empty catch is not a wrong design decision?
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Environment variable substitution in sed
...tement more readable and less error prone).
So if you want to search for 'foo' and replace it with the content of $BAR, you can enclose the sed command in double-quotes.
sed 's/foo/$BAR/g'
sed "s/foo/$BAR/g"
In the first, $BAR will not expand correctly while in the second $BAR will expand correc...
What is more efficient? Using pow to square or just multiply it with itself?
...
I tested the performance difference between x*x*... vs pow(x,i) for small i using this code:
#include <cstdlib>
#include <cmath>
#include <boost/date_time/posix_time/posix_time.hpp>
inline boost::posix_time::ptime now()
{
return boost::posix_time::microsec_clock::local_t...