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What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?
...assic HTTP web traffic first.
Regular HTTP:
A client requests a webpage from a server.
The server calculates the response
The server sends the response to the client.
Ajax Polling:
A client requests a webpage from a server using regular HTTP (see HTTP above).
The client receives the reques...
Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute' from assembly 'mscorlib
... Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute' from assembly mscorlib
Yes, this technically can go wrong when you execute code on .NET 4.0 instead of .NET 4.5. The attribute was moved from System.Core.dll to mscorlib.dll in .NET 4.5. While that sounds like a rather na...
What are Makefile.am and Makefile.in?
...efile.in to generate a Makefile.
The configure script itself is generated from a programmer-defined file named either configure.ac or configure.in (deprecated). I prefer .ac (for autoconf) since it differentiates it from the generated Makefile.in files and that way I can have rules such as make dis...
Getting a random value from a JavaScript array
...ed in your project you can use _.sample.
// will return one item randomly from the array
_.sample(['January', 'February', 'March']);
If you need to get more than one item randomly, you can pass that as a second argument in underscore:
// will return two items randomly from the array using unders...
Limit File Search Scope in Sublime Text 2
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The binary_file_patterns removes the files from Goto Anything, but not from Find in Files, as it should based on the comment. Anyone else experiencing this? Know how to fix it? I'm on Ubuntu, build 2221; same thing happens on my Mac (don't know build number).
...
How to remove files from git staging area?
...k added too many files to the staging area. How can I delete all the files from the staging area?
14 Answers
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Convert UTC datetime string to local datetime
I've never had to convert time to and from UTC. Recently had a request to have my app be timezone aware, and I've been running myself in circles. Lots of information on converting local time to UTC, which I found fairly elementary (maybe I'm doing that wrong as well), but I can not find any informat...
Android ListView not refreshing after notifyDataSetChanged
...);
items.clear();
items = dbHelper.getItems(); // reload the items from database
adapter.notifyDataSetChanged();
}
what you just have updated before calling notifyDataSetChanged() is not the adapter's field private List<Item> items; but the identically declared field of the fragm...
Android: How can I get the current foreground activity (from a service)?
... a native android way to get a reference to the currently running Activity from a service?
12 Answers
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Git fast forward VS no fast forward merge
... of commits as a single unit, and merge them as a single unit. It is clear from your history when you do feature branch merging with --no-ff.
If you do not care about such thing - you could probably get away with FF whenever it is possible. Thus you will have more svn-like feeling of workflow.
For...