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position: fixed doesn't work on iPad and iPhone
...g post that explains the problem: http://www.quirksmode.org/blog/archives/2010/12/the_fifth_posit.html
Also see this page for a compatibility chart showing which mobile browsers support position:fixed;: http://www.quirksmode.org/m/css.html
(but note that the mobile browser world is moving very qui...
How do I obtain the frequencies of each value in an FFT?
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The first bin in the FFT is DC (0 Hz), the second bin is Fs / N, where Fs is the sample rate and N is the size of the FFT. The next bin is 2 * Fs / N. To express this in general terms, the nth bin is n * Fs / N.
So if your sample rate, Fs is say 44.1 kHz a...
定时浇灌控制台：综合应用案例 · App Inventor 2 中文网
...立设备档案并保存 Broker 参数。
连接控制器，填写 1–300 秒和操作说明，开始浇灌后显示等待；只有请求 ID、动作与秒数全部匹配的确认才记成功。
15 秒无有效确认记录状态未知。可再次发送停止，收到 OFF、0 的对应确认才...
string c_str() vs. data()
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106
The documentation is correct. Use c_str() if you want a null terminated string.
If the impleme...
What's the difference between “version number” in iTunes Connect, “bundle version”, “bundle version
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edited Feb 21 '13 at 8:03
answered Sep 2 '11 at 8:58
Fab...
Android: textColor of disabled button in selector not showing?
...ile in res\color named something like text_color.xml.
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- disabled state -->
<item android:state_enabled="false" android:color="#9D9FA2" />
<item android:c...
How to check which locks are held on a table
...g on the version of SQL Server in question.
In your case, for SQL Server 2005, sp_lock is still available, but deprecated, so it's now recommended to use the sys.dm_tran_locks view for this kind of thing. You can find an example of how to "roll your own" sp_lock function here.
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Difference between string and char[] types in C++
...text's length, the array has to be scanned, character by character, for a \0 character.
A string is a class that contains a char array, but automatically manages it for you. Most string implementations have a built-in array of 16 characters (so short strings don't fragment the heap) and use the he...
When to use SELECT … FOR UPDATE?
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+50
The only portable way to achieve consistency between rooms and tags and making sure rooms are never returned after they had been delet...
Easiest way to upgrade eclipse 3.7 to 4.2 (Juno)
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edited Jun 29 '12 at 16:01
answered Jun 29 '12 at 15:04
G...