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When to use symbols instead of strings in Ruby?
...ime you reference the symbol, saving memory. So every time the interpreter reads :my_key it can take it from memory instead of instantiate it again. This is less expensive than initializing a new string every time.
You can get a list all symbols that are already instantiated with the command Symbo...
Regular expression for floating point numbers
...
JDB, thanks and I hope you are still around! I'm reading your post in the future :) Your answer certainly takes care of 0.24 and 2.2 and correctly disallows 4.2.44 All tested with regex101.com However, it disallows 123. which as you say may be acceptable (and I think it i...
How do I include inline JavaScript in Haml?
...
:javascript
$(document).ready( function() {
$('body').addClass( 'test' );
} );
Docs: http://haml.info/docs/yardoc/file.REFERENCE.html#javascript-filter
share
...
How to access the correct `this` inside a callback?
...e not necessary
alert(this.data); // but might improve readability
}).bind(this); // <- here we are calling `.bind()`
transport.on('data', boundFunction);
}
In this case, we are binding the callback's this to the value of MyConstructor's this.
Note: When a binding co...
Why can templates only be implemented in the header file?
... do stuff using T */}
};
// somewhere in a .cpp
Foo<int> f;
When reading this line, the compiler will create a new class (let's call it FooInt), which is equivalent to the following:
struct FooInt
{
int bar;
void doSomething(int param) {/* do stuff using int */}
}
Consequently, ...
What's the difference between window.location= and window.location.replace()?
...DR;
use location.href or better use window.location.href;
However if you read this you will gain undeniable proof.
The truth is it's fine to use but why do things that are questionable. You should take the higher road and just do it the way that it probably should be done.
location = "#/mypath/...
Why am I getting a “401 Unauthorized” error in Maven?
...f you try to publish something to a releases repository and that version already exists in the repository. So you might find that by publishing from the command line it works, but then when you do it from a script it fails (because it didn't exist in the repository the first time around). Either p...
How to manage REST API versioning with spring?
...ameters you can implement any complex version handling logic, and if you already want to have ranges, you very well might want something more soon enough.
Here is a couple of examples:
@RequestMapping({
"/**/public_api/1.1/method",
"/**/public_api/1.2/method",
})
public void method1(){
}
...
How to deploy correctly when using Composer's develop / production switch?
...nment you can control. Your development machine does qualify because you already have all the things that are needed to operate Composer.
What's the correct way to deploy this without installing the -dev dependencies?
The command to use is
composer install --no-dev
This will work in any environme...
Arrays, heap and stack and value types
...ove code, is new int[100] generating the array on the heap? From what I've read on CLR via c#, the answer is yes. But what I can't understand, is what happens to the actual int's inside the array. As they are value types, I'd guess they'd have to be boxed, as I can, for example, pass myIntegers to o...