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What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?
...fore you can understand these technologies, you have to understand classic 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 serve...
Adding a library/JAR to an Eclipse Android project
...round="#CCC"
droidfu:autoLoad="true"
droidfu:imageUrl="http://www.android.com/images/opensourceprojec.gif"
droidfu:progressDrawable="..."
/>
This comes out of the JAR, but you'll also need to add the new "xmlns:droidfu"
<LinearLayout xmlns:android="ht...
Rails: How does the respond_to block work?
...nd_to executes your block, passing a Responder into the format argument.
http://api.rubyonrails.org/v4.1/classes/ActionController/Responder.html
The Responder does NOT contain a method for .html or .json, but we call these methods anyways! This part threw me for a loop.
Ruby has a feature called...
Parse string to date with moment.js
...nth year (14 march 2014)
I have been reading the docs but without success
http://momentjs.com/docs/#/parsing/now/
6 Answer...
How to link a folder with an existing Heroku app
...
if using http i.e. heroku login then the remote is of the form https://git.heroku.com/project-name.git
– max pleaner
Aug 11 '16 at 0:33
...
getting date format m-d-Y H:i:s.u from milliseconds
...ge for date formats:
U = Seconds since the Unix Epoch
u = Microseconds
http://php.net/manual/en/function.date.php
Thanks goes to giggsey for pointing out a flaw in my original answer, adding number_format() to the line should fix the case of the exact second. Too bad it doesn't feel quite as ...
How do I debug Node.js applications?
...ce information
Longjohn
Benchmarking
Apache Bench: ab -n 100000 -c 1 http://127.0.0.1:9778/
wrk
Other
Trace
Vantage
Bugger
Google Tracing Framework
Paul Irish's Guide
Legacy
These use to work but are no longer maintained or no longer applicable to modern node versions.
https://github....
Do HTML WebSockets maintain an open connection for each client? Does this scale?
...ange those clients into WebSockets clients and it just might be feasible.
HTTP connections, while they don't create open files or consume port numbers for a long period, are more expensive in just about every other way:
Each HTTP connection carries a lot of baggage that isn't used most of the tim...
Delete multiple records using REST
...nefits of the internet if you don't). I suggest you look down this list of HTTP API architectures and pick the one that suits you. Just make yourself aware of what you lose out on if you choose another architecture, and make an informed decision based on your use case.
There are some bad answers to...
Why use symbols as hash keys in Ruby?
... then Ruby compares those "hashed keys" against each other.
Long answer:
https://web.archive.org/web/20180709094450/http://www.reactive.io/tips/2009/01/11/the-difference-between-ruby-symbols-and-strings
http://www.randomhacks.net.s3-website-us-east-1.amazonaws.com/2007/01/20/13-ways-of-looking-at...