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What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?
...requested webpage and executes the JavaScript on the page which requests a file from the server at regular intervals (e.g. 0.5 seconds).
The server calculates each response and sends it back, just like normal HTTP traffic.
Ajax Long-Polling:
A client requests a webpage from a server using regu...
NUnit vs. Visual Studio 2008's test projects for unit testing [closed]
...ly matter much, because you can convert test classes with separate project files and conditional compilation (like this, Visual Studio → NUnit):
#if !NUNIT
using Microsoft.VisualStudio.TestTools.UnitTesting;
#else
using NUnit.Framework;
using TestClass = NUnit.Framework.TestFixtureAttrib...
Netty vs Apache MINA
...
No option to provide a stream off disk in case you want to serve up large files. Again can be worked around by implementing your own protocol
Nice things about it:
Can handle a lot of connections
If you choose to implement some sort of distributed work system then knowing when one of your nodes...
Rails migrations: self.up and self.down versus change
...rs < ActiveRecord::Migration
def change
add_column :users, :image_file_name, :string
add_column :users, :image_content_type, :string
add_column :users, :image_file_size, :integer
add_column :users, :image_updated_at, :datetime
end
end
...
Grep regex NOT containing string
I am passing a list of regex patterns to grep to check against a syslog file. They are usually matching an IP address and log entry;
...
Checking for the correct number of arguments
...
I figured it out thank you. How about if the file name doesnt exist?
– Andrew K
Dec 3 '10 at 1:25
...
Installing Java 7 on Ubuntu
...
Download java jdk<version>-linux-x64.tar.gz file from https://www.oracle.com/technetwork/java/javase/downloads/index.html.
Extract this file where you want. like: /home/java(Folder name created by user in home directory).
Now open terminal.
Set path JAVA_HOME=path o...
How to resize an Image C#
...is essentially just the name of the class, you can save it out as whatever file type you like.
– mpen
Jun 10 '16 at 20:33
6
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How do I install a module globally using npm?
... Thanks for the clarifications. Isaacs should replace the entire npm manfile and git wiki with the above text. Could clear up the mass confusion.
– Mauvis Ledford
May 1 '11 at 8:12
...
Is SQL syntax case sensitive?
...hat insensitivity doesn't work as you'd assume it would do on Linux if the file-system is case-sensitive (default). You have to make a case-insensitive file-system on Linux in order for mysql case-insensitivity to work the same way as on windows (=properly). Especially turning it on/off after some w...