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Difference between static class and singleton pattern?
...
@Geek: Imagine the singleton implements an interface Foo, and you have a method taking a Foo as a parameter. With that setup, callers can choose to use the singleton as the implementation - or they could use a different implementation. The method is decoupled from the singleton...
How to throw std::exceptions with variable messages?
...atter &);
};
Example:
throw std::runtime_error(Formatter() << foo << 13 << ", bar" << myData); // implicitly cast to std::string
throw std::runtime_error(Formatter() << foo << 13 << ", bar" << myData >> Formatter::to_str); // explicit...
How to stop a goroutine
...Add(1)
ch := make(chan int)
go func() {
for {
foo, ok := <- ch
if !ok {
println("done")
wg.Done()
return
}
println(foo)
}
}()
ch <- 1
ch <- 2
ch <- 3
...
How to download a single commit-diff from GitHub?
...h (or .diff) to the commit-URL will give a nice patch:
https://github.com/foo/bar/commit/${SHA}.patch
Thanks to Ten Things You Didn't Know Git And GitHub Could Do...
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...
Store JSON object in data attribute in HTML jQuery
...
Actually, your last example:
<div data-foobar='{"foo":"bar"}'></div>
seems to be working well (see http://jsfiddle.net/GlauberRocha/Q6kKU/).
The nice thing is that the string in the data- attribute is automatically converted to a JavaScript object. I d...
Loop through an array in JavaScript
...e, that property will also be enumerated.
For example:
Array.prototype.foo = "foo!";
var array = ['a', 'b', 'c'];
for (var i in array) {
console.log(array[i]);
}
The above code will console log "a", "b", "c", and "foo!".
That can be particularly a problem if you use some library that ...
How do I pass command line arguments to a Node.js program?
...', b: 'boop' }
-
$ node example/parse.js -x 3 -y 4 -n5 -abc --beep=boop foo bar baz
{ _: [ 'foo', 'bar', 'baz' ],
x: 3,
y: 4,
n: 5,
a: true,
b: true,
c: true,
beep: 'boop' }
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...
Decode HTML entities in Python string?
... </html>
link_soup = BeautifulSoup('<a href="http://example.com/?foo=val1&bar=val2">A link</a>')
print(link_soup.a.encode(formatter=None))
# <a href="http://example.com/?foo=val1&bar=val2">A link</a>
...
Create Windows service from executable
...ame="NODE_ENV" value="production"/>
<!-- OPTIONAL FEATURE:
FOO_SERVICE_PORT=8989 will be persisted as an environment
variable to the system.
-->
<persistent_env name="FOO_SERVICE_PORT" value="8989" />
</service>
...
Is there any Rails function to check if a partial exists?
....0.10 I found that if I have an alternate extension, like app/views/posts/_foo.txt.erb, I needed to add that to the argument as: template_exists?("foo.txt", "posts", true)
– Gabe Martin-Dempesy
Oct 27 '11 at 22:25
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