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What is an abstract class in PHP?
...mpose requirements upon the exhibiting class.
Example below :
class Non_Abstract_Class
{
abstract protected function getValue();
public function printOut() {
echo "Hello how are you?";
}
}
$obj=new Non_Abstract_Class();
$obj->printOut();
//Fatal error: Class Non_Abstract_...
Asynchronous Process inside a javascript for loop [duplicate]
...ForumPost&subject=Demo' + i + '&message=Here%20is%20the%20Demo&_charset_=UTF-8';
http.open('POST', url, true);
http.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
http.onreadystatechange = function() {
console.log("Done " + i + "<<<<...
How to set focus on input field?
...on($timeout) {
return {
restrict: 'AC',
link: function(_scope, _element) {
$timeout(function(){
_element[0].focus();
}, 0);
}
};
});
usage is
<input name="theInput" auto-focus>
We use the timeout to let things in the...
Return all enumerables with yield return at once; without looping through
...
I came up with a quick yield_ snippet:
Here's the snippet XML:
<?xml version="1.0" encoding="utf-8"?>
<CodeSnippets xmlns="http://schemas.microsoft.com/VisualStudio/2005/CodeSnippet">
<CodeSnippet Format="1.0.0">
<Header&g...
Is there a cross-browser onload event when clicking the back button?
...-cache-ii-the-unload-event/
Firefox: https://developer.mozilla.org/En/Using_Firefox_1.5_caching.
Chrome: https://code.google.com/p/chromium/issues/detail?id=2879
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...
UICollectionView inside a UITableViewCell — dynamic height?
... -
// MARK: UIView functions
override func systemLayoutSizeFitting(_ targetSize: CGSize, withHorizontalFittingPriority horizontalFittingPriority: UILayoutPriority, verticalFittingPriority: UILayoutPriority) -> CGSize {
collectionView.layoutIfNeeded()
let topConstraintCons...
How do you add Boost libraries in CMakeLists.txt?
...eLists.txt file (change any options from OFF to ON if you want):
set(Boost_USE_STATIC_LIBS OFF)
set(Boost_USE_MULTITHREADED ON)
set(Boost_USE_STATIC_RUNTIME OFF)
find_package(Boost 1.45.0 COMPONENTS *boost libraries here*)
if(Boost_FOUND)
include_directories(${Boost_INCLUDE_DIRS})
ad...
How to determine equality for two JavaScript objects?
...
If you're using underscore, you can just do _.isEqual(obj1, obj2);
– chovy
Aug 21 '13 at 21:38
13
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What's the best way to trim std::string?
...ic inline void ltrim(std::string &s) {
s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](unsigned char ch) {
return !std::isspace(ch);
}));
}
// trim from end (in place)
static inline void rtrim(std::string &s) {
s.erase(std::find_if(s.rbegin(), s.rend(), [](unsigne...
Parsing XML with namespace in Python via 'ElementTree'
...
@Jon: register_namespace only influences serialisation, not search.
– Martijn Pieters♦
Aug 20 '14 at 7:10
5
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