Xah Web Dev Blog Archive 2014-01
saucelabs.com A service that automatically run your testing on combination of browsers/OS.
learned a new thing today. JavaScript Promises. looking to see what it is now.
looks like Google Search killed blog and discussions search, about 3 days ago.
Getter/Setter Properties (updated)
the keyword 「new」 Demystified (major update)
Should You Move Variables to the Top? (on its own page)
HTML5 Custom Data Attribute
made a site-wide change of format. This:
<s class="deadurl" title="accessed:2006-01-05; defunct:2011-06-12">http://example.com/index.html</s>
is now this:
<s data-accessed="2006-01-05" data-defunct-date="2011-06-12">http://example.com/index.html</s>
this is a better format, using HTML5 Custom Data Attribute. However, now the user can't see the date accessed. Before, reader can see it when mouse hovers over. So, it's a hard decision to make.
JS: never use 「delete」 to remove element in array
CSS: Box Shadow (updated)
DOM: Change CSS (updated)
CSS: Progress Bar Example and HTML: meter Tag (updated)
CSS Layout Tutorial (minor update)
Where is Socket.IO Client Library At?
Web Design Idiocy: Non-Copyable Text
one of the idiocy of web design is this: a piece of text that you cannot copy. Usually the title. Here's a prime example: [Introducing WebSockets: Bringing Sockets to the Web By Malte Ubl, Eiji Kitamura. At www.html5rocks.com… , accessed on 2014-01-04 ] (must use Firefox.)
Websocket + JavaScript + Node.js = Future
websocket is the future. I think, in a couple of years, vast majority of websites will be using websocket. Meaning, with server push. Meaning, to the user, a site will have dynamic info, auto updated (most social sites, are already this, example: Google Plus, fb, twitter, and any stock sites or sites with dynamic news. Also Google Analytics's graph is also a example. Basically any sites that has graph).
also, i predict JavaScript and Node.js will overtake backend.
Node.js is very young, but there are incredible amount of stuff and force going on. Agile is the word.
Node.js server monitor/auto-restart
to install a monitor for your server written in Node.js, you can use nodemon
. It'll watch your server process, and auto restart it if it crashed. It can also restart when source code change. Very handy for dev.
[2014-01-02 https://github.com/remy/nodemon ]
npm install -g nodemon
to start your process, do: nodemon your_node_script
type nodemon -h
for help.
another popular one is
npm install supervisor -g
.
[2014-01-02 https://github.com/isaacs/node-supervisor ]
and yet another popular one is [2014-01-02 https://github.com/nodejitsu/forever ]
here's a list of generic server monitor tools. (i haven't checked them out)
- [ Monit ] [ https://en.wikipedia.org/wiki/Monit ] → http://mmonit.com/monit/
- [ Upstart ] [ https://en.wikipedia.org/wiki/Upstart ] → http://upstart.ubuntu.com/
- [ Daemontools ] [ https://en.wikipedia.org/wiki/Daemontools ] → http://cr.yp.to/daemontools.html
- Launchtool → http://people.debian.org/~enrico/launchtool.html