web 2.0, frontend, ajax, flash, css, dhtml, php

Download yslow by yahoo! and check out the result. Result shows how many http requests are made in a page, whether expires header is set or not, whether GZip is used or not, whether page contains CSS at the top, whether page contains javascript at the bottom, whether js is minified, etc.

Which are all good signs if they are passed.

If you’ve ever read the series of Performance Research by yahoo UI blog, you know what they are for.

Knowing how to code is very important. However, that is just the beginning of becoming a frontend engineer/developer. It’s the best to know how to optimize a site in terms of performance on top of that. There are several factors that would slow down the performance of the site. But at the end it comes down to these two things: Backend and Frontend. So if you want to become a good frontend engineer/developer, you should be able to see how those are affecting your site.

I read this article, specifically “One annoying interface issue that seems to happen so far with many iPhone applications is that they open in a very zoomed-out version, so the first thing you have to do is zoom the screen and drag. Even if a site is optimized for the iPhone’s 320×480 screen, you can easily scroll away from it into the blank area of a larger virtual page.”.

There is a way to fix that issue. Safari for iPhone introduced a new meta data called “viewport”.
HTML markup for viewport is as follows:

That will clear vastly empy space. If you specify viewport’s value, its default is 980 and because of 980 width, it will create empty space on right hand side if your site is designed for 320×480.

More detailed information can be found at this link.

From the documentation linked above, you will find really good resources on how to build a site for iPhone.

By the way iPhone rocks! ARGGGGG!!