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Using emit vs calling a signal as if it's a regular function in Qt
...there's a name clash, that doesn't help much if you have a bunch of source files that are using it (needlessly, to boot).
– Michael Burr
Apr 15 '12 at 9:20
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...
Can I use view pager with views (not with fragments)
... super.onStop();
pagerAdapter.release();
}
Where the XML files are obvious view_screen.xml:
<xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/screen"
android:layout_width="match_...
Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)
...ck, deleting a!
Personally I used this few times to ensure to close POSIX file descriptor in a C++ program.
Having a real class that manage resources and so avoids any kind of leaks is usually better, but this finally is useful in the cases where making a class sounds like an overkill.
Besides, I l...
What Makes a Good Unit Test? [closed]
...y test one thing
Minimize test dependencies (no
dependencies on databases, files, ui
etc.)
Don't forget that you can do intergration testing with your xUnit framework too but keep intergration tests and unit tests separate
...
Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...中我们经常使用的一些而已，还有一些其他的，譬如Oprofile等工具不怎么常用，这里就不再详细介绍。
通过上面UI性能的原理、原因、工具分析总结可以发现，我们在开发应用时一定要时刻重视性能问题，如若真的没留意出现了...
Rolling median algorithm in C
...ations in one, see src/library/stats/man/runmed.Rd (the source of the help file) which says
\details{
Apart from the end values, the result \code{y = runmed(x, k)} simply has
\code{y[j] = median(x[(j-k2):(j+k2)])} (k = 2*k2+1), computed very
efficiently.
The two algorithms are internally e...
How to use the “required” attribute with a “radio” input field
...intention to modify the default behavior.
Add the following into you .css file.
/* style all elements with a required attribute */
:required {
background: red;
}
For more information you can refer following URL.
https://css-tricks.com/almanac/selectors/r/required/
...
How to retrieve form values from HTTPPOST, dictionary or?
...lues, and asp.net mvc engine automagically fills it:
//Defined in another file
class MyForm
{
public string var1 { get; set; }
}
[HttpPost]
public ActionResult SubmitAction(MyForm form)
{
string var1 = form1.Var1;
}
...
Call An Asynchronous Javascript Function Synchronously
...events, etc.), DO NOT DO THIS!
But here's how you can do this:
./calling-file.js
var createClient = require('sync-rpc');
var mySynchronousCall = createClient(require.resolve('./my-asynchronous-call'), 'init data');
var param1 = 'test data'
var data = mySynchronousCall(param1);
console.log(data);...
Please explain some of Paul Graham's points on Lisp
...ean for this to be otherwise, though.
So, suppose we've got this code in a file somewhere and we ask Clojure to execute it. Also, let's assume (for the sake of simplicity) that we've made it past the library import. The interesting bit starts at (println and ends at the ) far to the right. This is l...