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Creating the Singleton design pattern in PHP5
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$fact == $fact2;
But:
$fact = new UserFactory()
Throws an error.
See http://php.net/manual/en/language.variables.scope.php#language.variables.scope.static to understand static variable scopes and why setting static $inst = null; works.
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Why can't I assign a *Struct to an *Interface?
...n() {
ps := new(Struct)
pi := Interface(ps)
_, _ = pi, ps
}
https://play.golang.org/p/BRTaTA5AG0S
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When to use .First and when to use .FirstOrDefault with LINQ?
... you want only the first. Also it is ok for the result to be empty
From: http://www.technicaloverload.com/linq-single-vs-singleordefault-vs-first-vs-firstordefault/
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How to find the type of an object in Go?
...ct.TypeOf(tst3))
}
Output:
Hello, playground
string
int
float64
see: http://play.golang.org/p/XQMcUVsOja to view it in action.
More documentation here: http://golang.org/pkg/reflect/#Type
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What is the curiously recurring template pattern (CRTP)?
... object's foo() method, which is what you aim to do with virtual methods.
http://coliru.stacked-crooked.com/a/2d27f1e09d567d0e
template <typename T>
struct Base {
void foo() {
(static_cast<T*>(this))->foo();
}
};
struct Derived : public Base<Derived> {
void foo() {
...
href image link download on click
...attribute 'download' to your links.
<a href="/test.pdf" download>
http://www.w3schools.com/tags/att_a_download.asp
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Escape Character in SQL Server
...to SQL injection attacks if you don't consider it. More info at Google or: http://it.toolbox.com/wiki/index.php/How_do_I_escape_single_quotes_in_SQL_queries%3F
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How to make Entity Framework Data Context Readonly
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How do I read configuration settings from Symfony2 config.yml?
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I learnt a easy way from code example of http://tutorial.symblog.co.uk/
1) notice the ZendeskBlueFormBundle and file location
# myproject/app/config/config.yml
imports:
- { resource: parameters.yml }
- { resource: security.yml }
- { resource:
Window.open and pass parameters by post method
...llo",
"b": "Welt"
}]
}
};
var form = getForm("http://example.com", "_blank", obj, "post");
document.body.appendChild(form);
form.submit();
form.parentNode.removeChild(form);
}
s...