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What does the KEY keyword mean?
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@sergtk: As per the notation in the MySQL manual, FOO|BAR means that either the keyword FOO or the keyword BAR can be used. Id est, they are synonyms.
– dotancohen
Jan 6 '14 at 17:33
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Concatenating string and integer in python
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No string formatting:
>> print 'Foo',0
Foo 0
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convert String to DateTime
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DateTime.strptime allows you to specify the format and convert a String to a DateTime.
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List of Java class file format major version numbers?
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If you have a class file at build/com/foo/Hello.class, you can check what java version it is compiled at using the command:
javap -v build/com/foo/Hello.class | grep "major"
Example usage:
$ javap -v build/classes/java/main/org/aguibert/liberty/Book.class | g...
Why are there two kinds of functions in Elixir?
...rts with a clean slate and you don't get the variables of different scopes all mixed up together. You have a clear boundary.
We could retrieve the named hello function above as an anonymous function. You mentioned it yourself:
other_function(&hello(&1))
And then you asked, why I cannot s...
How can I profile C++ code running on Linux?
... one of the suggested ones.
However, if you're in a hurry and you can manually interrupt your program under the debugger while it's being subjectively slow, there's a simple way to find performance problems.
Just halt it several times, and each time look at the call stack. If there is some code th...
Do asynchronous operations in ASP.NET MVC use a thread from ThreadPool on .NET 4
...hronous processing in ASP.NET (which is what asynchronous controllers basically represent).
Let's first consider a standard synchronous action:
public ActionResult Index()
{
// some processing
return View();
}
When a request is made to this action a thread is drawn from the thread pool a...
Using regular expression in css?
... styles you want to apply to many elements, you should add a class to them all, rather than relying on ID selectors...
<div id="sections">
<div id="s1" class="sec">...</div>
<div id="s2" class="sec">...</div>
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</div>
and
.sec {
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}
Or in yo...
How do you exit from a void function in C++?
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You mean like this?
void foo ( int i ) {
if ( i < 0 ) return; // do nothing
// do something
}
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How to import and use different packages of the same name in Go language?
... (
t "text/template"
h "html/template"
)
func main() {
t.New("foo").Parse(`{{define "T"}}Hello, {{.}}!{{end}}`)
h.New("foo").Parse(`{{define "T"}}Hello, {{.}}!{{end}}`)
}
The code above gives two different names to the imported packages with the same name. So, there are now two di...