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Is it OK to use == on enums in Java?
... it is to put the functionality within the enum itself, so you could just call roundingMode.round(someValue). This gets to the heart of Java enums - they're object-oriented enums, unlike the "named values" found elsewhere.
EDIT: The spec isn't very clear, but section 8.9 states:
The body of an ...
How to set a Javascript object values dynamically?
...
You can get the property the same way as you set it.
foo = {
bar: "value"
}
You set the value
foo["bar"] = "baz";
To get the value
foo["bar"]
will return "baz".
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im...
express throws error as `body-parser deprecated undefined extended`
In my node app, I am using express. all works fine, But i am getting error in the cmd . I use all are updated modules...
6...
What is the C# equivalent to Java's isInstance()?
...esult of the cast and use as if you do. You hardly ever want to write:
if(foo is Bar) {
return (Bar)foo;
}
Instead of:
var bar = foo as Bar;
if(bar != null) {
return bar;
}
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impr...
How to convert lazy sequence to non-lazy in Clojure
...
doall is all you need. Just because the seq has type LazySeq doesn't mean it has pending evaluation. Lazy seqs cache their results, so all you need to do is walk the lazy seq once (as doall does) in order to force it all, and t...
How do I get the name of a Ruby class?
...ce the class of a class is Class. Instead, you can just use name:
module Foo
class Bar
def self.say_name
puts "I'm a #{name}!"
end
end
end
Foo::Bar.say_name
output:
I'm a Foo::Bar!
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Elegant way to check for missing packages and install them?
...em are novice/intermediate R users and don't realize that they have to install packages they don't already have.
29 Answers...
What is the best way to exit a function (which has no return value) in python before the function en
...
I would suggest:
def foo(element):
do something
if not check: return
do more (because check was succesful)
do much much more...
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GCM with PHP (Google Cloud Messaging)
...
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($post));
// Actually send the request
$result = curl_exec($ch);
// Handle errors
if (curl_errno($ch)) {
echo 'GCM error: ' . curl_error($ch);
}
// Close curl handle
curl_close($ch);
// Debug GCM res...
Why is i++ not atomic?
... the argument that i++ should have been designed and documented as specifically performing an atomic increment, so that a non-atomic increment is performed using i = i + 1. However, this would break the "cultural compatibility" between Java, and C and C++. As well, it would take away a convenient n...