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What is SaaS, PaaS and IaaS? With examples
...es: Amazon EC2, Windows Azure, Rackspace, Google Compute Engine.
PaaS (Platform as a Service), as the name suggests, provides you computing platforms which typically includes operating system, programming language execution environment, database, web server etc.
Examples: AWS Elastic Beanstalk, Wi...
Why should I declare a virtual destructor for an abstract class in C++?
...xample:
Base *p = new Derived;
// use p as you see fit
delete p;
is ill-formed if Base doesn't have a virtual destructor, because it will attempt to delete the object as if it were a Base *.
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How to set selected value of jquery select2?
... return {results: data};
},
cache: true
},
formatResult: function(element){
return element.text + ' (' + element.id + ')';
},
formatSelection: function(element){
return element.text + ' (' + element.id + ')';
},
escapeMarkup...
How do C++ class members get initialized if I don't do it explicitly?
...ivate:
int m_iInteger=10;
double m_dDouble=10.765;
};
I use this form pretty much exclusively, although I have read some people consider it 'bad form', perhaps because it was only recently introduced - I think in C++11. To me it is more logical.
Another useful facet to the new rules is h...
Get file size, image width and height before upload
...ype) )
return EL_preview.insertAdjacentHTML('beforeend', `Unsupported format ${file.type}: ${file.name}<br>`);
const img = new Image();
img.addEventListener('load', () => {
EL_preview.appendChild(img);
EL_preview.insertAdjacentHTML('beforeend', `<div>${file.name...
Is it possible to use Java 8 for Android development?
...anguage features and a subset of Java 8 language features that vary by platform version.
To check which features of java 8 are supported
Use Java 8 language features
We've decided to add support for Java 8 language features directly into the current javac and dx set of tools, and deprecate th...
What is sr-only in Bootstrap 3?
...
According to bootstrap's documentation, the class is used to hide information intended only for screen readers from the layout of the rendered page.
Screen readers will have trouble with your forms if you don't include a label for every input. For these inline forms, you can hide the labe...
Is having an 'OR' in an INNER JOIN condition a bad idea?
...
@ladenedge: these joins will be performed using a table scan in a nested loop. This is slow if your tables are large.
– Quassnoi
May 5 '11 at 18:43
...
How can I create a “Please Wait, Loading…” animation using jQuery?
... That would be a nice addition, cballou. I was merely trying to keep the information minimized - but as you point out, it certainly can be improved upon.
– Sampson
Dec 27 '09 at 2:02
...
Can you provide some examples of why it is hard to parse XML and HTML with a regex? [closed]
...x against that!
EDIT (Jörg W Mittag): Here is another nice piece of well-formed, valid HTML 4.01:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<HTML/
<HEAD/
<TITLE/>/
<P/>
...