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Does ruby have real multithreading?
...ing
models.
(Unfortunately, only two of those 11 implementations are actually
ready for production use, but by the end of the year that number
will probably go up to four or five.) (Update: it's now 5: MRI, JRuby, YARV (the interpreter for Ruby 1.9), Rubinius and IronRuby).
The first implement...
Hidden Features of Xcode
...
It's called "option" on the Mac, not "alt". And if you want fancy symbols, it can be written ⌥⌘↑
– Brian Campbell
Mar 31 '09 at 15:33
...
In plain English, what does “git reset” do?
...master)
You've ended up in a detached HEAD state. HEAD, work tree, index all match B, but the master branch was left behind at C. If you make a new commit D at this point, you'll get this, which is probably not what you want:
- A - B - C (master)
\
D (HEAD)
Remember, reset doesn'...
Only using @JsonIgnore during serialization, but not deserialization
...
In order to accomplish this, all that we need is two annotations:
@JsonIgnore
@JsonProperty
Use @JsonIgnore on the class member and its getter, and @JsonProperty on its setter. A sample illustration would help to do this:
class User {
// More f...
Is there an advantage to use a Synchronized Method instead of a Synchronized Block?
...nchronized method over the block.
Perhaps the only one ( but I wouldn't call it an advantage ) is you don't need to include the object reference this.
Method:
public synchronized void method() { // blocks "this" from here....
...
...
...
} // to here
Block:
public void method() {...
How do I enumerate the properties of a JavaScript object? [duplicate]
...familiar with object-oriented programming would expect anything less! Typically, someone that brings this up has been subjected to Douglas Crockford's warnings about this, which still confuse me a bit. Again, inheritance is a normal part of OO languages and is therefore part of JavaScript, notwithst...
const vs constexpr on variables
...u can not modify them. However only PI2 is a compile-time constant. It shall be initialized at compile time. PI1 may be initialized at compile time or run time. Furthermore, only PI2 can be used in a context that requires a compile-time constant. For example:
constexpr double PI3 = PI1; // er...
How to concatenate two strings to build a complete path
...r -p $SUBFOLD2
And if you want to use readline so you get completion and all that, add a -e to the call to read:
read -e -p "Enter a directory: " BASEPATH
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Display help message with python argparse when script is called without any arguments
... what I needed. One question, can this be applied to subcommands too? I usually just get ``Namespace(output=None)`. How can I trigger an error easily on ALL subcommands? I'd like to trigger an error there.
– Jonathan Komar
May 20 '16 at 7:43
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How can I get PHPUnit MockObjects to return different values based on a parameter?
...ay('firstparam', 'secondparam', 'retval'),
array('modes', 'foo', array('Array', 'of', 'modes'))
)
)
);
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