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How do iOS Push Notifications work?
...he service and receives notifications over this persistent connection. Providers connect with APNs through a persistent and secure channel while monitoring incoming data intended for their client applications. When new data for an application arrives, the provider prepares and sends a notification t...
Correct way to delete cookies server-side
...me cookie value with ; expires appended will not destroy the cookie.
Invalidate the cookie by setting an empty value and include an expires field as well:
Set-Cookie: token=deleted; path=/; expires=Thu, 01 Jan 1970 00:00:00 GMT
Note that you cannot force all browsers to delete a cookie. The clie...
Line-breaking widget layout for Android
...ty that presents some data to the user. The data is such that it can be divided into 'words', each being a widget, and sequence of 'words' would form the data ('sentence'?), the ViewGroup widget containing the words. As space required for all 'words' in a 'sentence' would exceed the available horizo...
How can you find the height of text on an HTML canvas?
...spec has a context.measureText(text) function that will tell you how much width it would require to print that text, but I can't find a way to find out how tall it is. I know it's based on the font, but I don't know to convert a font string to a text height.
...
Load RSA public key from file
...
Below is the relevant information from the link which Zaki provided.
Generate a 2048-bit RSA private key
$ openssl genrsa -out private_key.pem 2048
Convert private Key to PKCS#8 format (so Java can read it)
$ openssl pkcs8 -topk8 -inform PEM -outform DER -in private_...
Get Current Area Name in View or Controller
...veItem(htmlHelper, controller, action, area))
listItem.GenerateId("menu_active");
return MvcHtmlString.Create(listItem.ToString(TagRenderMode.Normal));
}
private static bool CheckForActiveItem(HtmlHelper htmlHelper, string controller, string action, string area)
{
...
“[notice] child pid XXXX exit signal Segmentation fault (11)” in apache error.log [closed]
...k start
...
Now attach gdb to one of the child processes, in this case PID 690 (columns are UID, PID, PPID, ...)
$ sudo gdb
(gdb) attach 690
Attaching to process 690.
Reading symbols for shared libraries . done
Reading symbols for shared libraries ....................... done
0x9568ce29 in accep...
How do you comment out code in PowerShell?
...d by the Get-Help CmdLet and can be put before the keyword Function, or inside the {} before or after the code itself.
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How useful/important is REST HATEOAS ( maturity level 3)?
...easons you suggest: it's difficult. It adds complexity to both the server side and the client (if you actually want to benefit from it).
HOWEVER, billions of people experience the benefits of REST today. Do you know what the "checkout" URL is at Amazon? I don't. Yet, I can checkout every day. Has t...
Linux command or script counting duplicated lines in a text file?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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