大约有 45,000 项符合查询结果（耗时：0.0591秒） [XML]
How to Test a Concern in Rails
Given that I have a Personable concern in my Rails 4 application which has a full_name method, how would I go about testing this using RSpec?
...
How does the ThreadStatic attribute work?
...architecture.
That would also explain why putting the attribute on an inappropriate (non-static) symbol doesn't get a reaction from the compiler. The compiler doesn't know what special semantics the attribute requires. Code analysis tools like FX/Cop, though, should know about it.
Another way t...
Should I use static_cast or reinterpret_cast when casting a void* to whatever
...terpret_cast has a number of meanings, for all of which holds that “the mapping performed by reinterpret_cast is implementation-defined.” [5.2.10.3]
But in the particular case of casting from void* to T* the mapping is completely well-defined by the standard; namely, to assign a type to a typel...
How to center align the ActionBar title in Android?
...
android:orientation="vertical">
<android.support.v7.widget.AppCompatTextView
android:id="@+id/tvTitle"
style="@style/TextAppearance.AppCompat.Widget.ActionBar.Title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
andro...
Scripting Language vs Programming Language [closed]
...nguages success is the ease of updating. Do you remember the days of java applets on the web, this is an example of running a programming language (java) vs running a scripting language (javascript). At the time, computers were not as powerful and javascript wasn't as mature so Java applets domina...
Parse string to DateTime in C#
...
Parse exact can be useful. Sometimes, I would prefer my application crash and my computer light on fire, as opposed to producing incorrect output. Depends on the application.
– Allen
Jul 31 '15 at 18:03
...
Rendering JSON in controller
... be returning JSON either because:
A) You are building part / all of your application as a Single Page Application (SPA) and you need your client-side JavaScript to be able to pull in additional data without fully reloading the page.
or
B) You are building an API that third parties will be consum...
Serving gzipped CSS and JavaScript from Amazon CloudFront via S3
...s.type = "text/css";
scriptStyles.href = sr_css_file;
head.appendChild(scriptStyles);
//alert('adding css to header:'+sr_css_file);
}
}());
</script>
gzipcheck.js.jgz is just sr_gzipEnabled = true; This tests to make sure the browser can handle the gzipped code...
Why is there no xrange function in Python3?
...ments, using timeit instead of trying to do it manually with time.
First, Apple 2.7.2 64-bit:
In [37]: %timeit collections.deque((x for x in xrange(10000000) if x%4 == 0), maxlen=0)
1 loops, best of 3: 1.05 s per loop
Now, python.org 3.3.0 64-bit:
In [83]: %timeit collections.deque((x for x in ...
What is a StackOverflowError?
...ogramming, it's possible to generate indirect recursion. For example, your app may be handling paint messages, and, whilst processing them, it may call a function that causes the system to send another paint message. Here you've not explicitly called yourself, but the OS/VM has done it for you.
To ...