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How can I access and process nested objects, arrays or JSON?
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1208
Preliminaries
JavaScript has only one data type which can contain multiple values: Object. An ...
Is APC compatible with PHP 5.4 or PHP 5.5?
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+500
Zend OPCache included in PHP 5.5
On the 21st March 2013, the PHP 5.5 beta 1 was released including "Zend OPCache" - It looks firmly l...
How can I use optional parameters in a T-SQL stored procedure?
...gs of Dynamic SQL by Erland Sommarskog
If you have the proper SQL Server 2008 version (SQL 2008 SP1 CU5 (10.0.2746) and later), you can use this little trick to actually use an index:
Add OPTION (RECOMPILE) onto your query, see Erland's article, and SQL Server will resolve the OR from within (@La...
Is AsyncTask really conceptually flawed or am I just missing something?
... urls) {
int count = urls.length;
long totalSize = 0;
for (int i = 0; i < count; i++) {
totalSize += Downloader.downloadFile(urls[i]);
publishProgress((int) ((i / (float) count) * 100));
}
return totalSize...
HTML Form: Select-Option vs Datalist-Option
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james.garrissjames.garriss
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MLKitCodeScanner 拓展：离线条码 / 二维码识别 · App Inventor 2 中文网
...（或水平布局），把它的宽度设为「充满」、高度设为 300 像素 —— 这就是预览画面的位置。
选中 MLKitCodeScanner，把 预览容器（PreviewContainer） 属性选成刚才那个布局。
代码块里直接调 开始扫描：
when 按钮_开始.Click() {
C...
How to get IntPtr from byte[] in C#
...unmanagedPointer = Marshal.AllocHGlobal(bytes.Length);
Marshal.Copy(bytes, 0, unmanagedPointer, bytes.Length);
// Call unmanaged code
Marshal.FreeHGlobal(unmanagedPointer);
Alternatively you could declare a struct with one property and then use Marshal.PtrToStructure, but that would still require ...
Capture Image from Camera and Display in Activity
...eView imageView;
private static final int MY_CAMERA_PERMISSION_CODE = 100;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.imageView = (ImageView)this.findViewById(R.id.imageV...
jQuery SVG, why can't I addClass?
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Edit 2016: read the next two answers.
JQuery 3 fixes the underlying issue
Vanilla JS: element.classList.add('newclass') works in modern browsers
JQuery (less than 3) can't add a class to an SVG.
.attr() works with SVG, so if...
Is there a way to automate the android sdk installation?
...d packages.
<package> is a sdk-style path (e.g. "build-tools;23.0.0" or
"platforms;android-23").
<package-file> is a text file where each line is a sdk-style path
of a package to install or uninstall.
Multiple --package_file arguments may be s...