大约有 7,710 项符合查询结果（耗时：0.0380秒） [XML]
What's the difference between equal?, eql?, ===, and ==?
...ridden == method, but there are exceptions. Numeric types, for example, perform type conversion across ==, but not across eql?, so:
1 == 1.0 #=> true
1.eql? 1.0 #=> false
So you're free to override this for your own uses, or you can override == and use alias :eql? :== so the two method...
Difference between CouchDB and Couchbase
...mes alone.
First, there was CouchDB, a database created by Damien Katz, a former IBM developer. Its official name was changed to Apache CouchDB after it became an Apache project.
A company named CouchIO was founded to work on Apache CouchDB and later changed its name to CouchOne (by "its name" I m...
How to use the same C++ code for Android and iOS?
... its UI and peculiarities, so we intend to write specific code to each platform in this regard. In other hands, all logic code, business rules, and things that can be shared we intend to write using C++, so we can compile the same code to each platform.
In the diagram, you can see the C++ layer at ...
ab load testing
...ark tool is very basic, and while it will give you a solid idea of some performance, it is a bad idea to only depend on it if you plan to have your site exposed to serious stress in production.
Having said that, here's the most common and simplest parameters:
-c: ("Concurrency"). Indicates how man...
What does the Reflect object do in JavaScript?
...es a number of reasons why the Reflect object is useful:
(I've copied (and formatted) the following text for future reference from that source as they are the only examples I could find. Besides that, they make sense, already have a good explanation and touch the question's apply example.)
More use...
Mail multipart/alternative vs multipart/mixed
...
It is not in form of "<" id-left "@" id-right ">".
– Michael-O
Mar 28 at 9:33
|
...
What is “git remote add …” and “git push origin master”?
...d to have many topic branches (and often several remotes) I always use the form:
git push origin master
... to avoid accidentally pushing other branches.
In reply to your comments on one of the other answers, it sounds to me as if are learning about git in a top-down way very effectively - you...
C dynamically growing array
...
It's a performance tradeoff. If you double each time, then you sometimes have a 100% overhead and on average 50%. 3/2 gives you 50% worst and 25% typical. It's also close to the effective base of the Fibionacci sequence in the limit (p...
How do I expand a tuple into variadic template function's arguments?
...dit: Added forward around actual function call to support rvalue reference form *this in case you are using clang (or if anybody else actually gets around to adding it).
Edit: Added missing forward around the function object in the non-member apply function's body. Thanks to pheedbaq for pointing ...
How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
...ard-compatible code, and you want this in a single expression, the most performant while correct approach is to put it in a function:
def merge_two_dicts(x, y):
"""Given two dictionaries, merge them into a new dict as a shallow copy."""
z = x.copy()
z.update(y)
return z
and then you...