JavaScript to detect iPad visitors

This post gives you a short JavaScript function to detect your iPad users. Without any further ado, a javascript code to detect iPad users:

function isiPad(){
    return (navigator.platform.indexOf("iPad") != -1);
}

You can also detect browser version and some other stuff by parsing user agent string. Here is an iPad Safari’s user agent string for your reference:

Mozilla/5.0 (iPad; U; CPU OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B334b Safari/531.21.10

Recently a friend of mine got himself an iPad and I couldn’t not notice how his internet browsing device preferences are changing (PC & iPad). More and more people are using hand held devices namely iPad to browse the internet. So it’s about time to show your iPad visitors some love and display your website designed specifically for iPad.

Let’s see how to do this. There are two way:

  1. Redirect iPad visitors
  2. Apply different CSS file for iPad users

Most of the posts on the internet related to iPad user detection are suggesting and showing you how to redirect (including myself in my previous iPhone & iPod detection post). However, I would recommend the second option, applying different CSS file.

You can apply the same technique described in applying different styling for javascript enabled browser with CSS post and apply different CSS rules for iPad visitors.

Sidenote: If you decide to redirect iPad users rather than apply different CSS style rules, than I would recommend using server side detection and redirection. You can see an example PHP code by David Walsh.

jQuery Globalization plugin — jquery.glob.js

This is the first post of a series that are dedicated to jQuery’s new Microsoft contributed Globalization plugin or shortly jquery.glob.js. In this first post I will try to cover the very basics like library licensing, “the good & the bad” and some thoughts on how it could be improved (IMO).

I will be post some jQuery globalization plugin tutorials in coming days, so bare with me.

Before we jump into licensing and support issues, first things are first. What’s up with the name? It’s confusing! When did we start calling localization (l10n) a globalization?! I haven’t seen any g12n abbreviations lately, have you? When I first came across it, I thought it was some wicked jQuery solution to "global variables are evil" idea or solution to some other problem that I am not even familiar with :) Don’t you agree, it’s confusing a bit.

So, there you go. One little improvement: "Don’t confuse, rename it!"

Before we talk about the jQuery globalization plugin license, let me mention that this plugin is now officially supported by jQuery Project. Which means that it will be under continues improvement by jQuery core team and will be compatible with the future jQuery and jQuery UI releases. Also globalization plugin will become a part of the jQuery UI project.

jQuery Project officially supports jQuery Globalization plugin.

Now, the legal stuff – the license. Because jQuery project accepted the globalization plugin as officially supported (and of course because Microsoft agreed to its terms) jQuery Globalization plugin is distributed under the same license as core jQuery.js. So you are safe to do pretty much anything.

jQuery Globalization plugin is licensed under the same non-restrictive terms as the core jQuery.js

After playing with the plugin for a while I realized that it does not do any DOM manipulations and you certainly don’t expect any animations. So what’s the point of having it as jQuery plugin and not a general JavaScript globalization/localization library? This way a larger community could benefit from it. I guess it was more of marketing decision rather than technical.

JavaScript library alternative to globalization plugin would be nice.

To be honest, JavaScript and jQuery community had a lack of localization libraries and jQuery Globalization plugin with over 350 localizations is a great solution. Surely, plugin’s exposed function names and namespacing could be improved, and most probably will be, but we’ll talk about it in our next “jQuery Globalization plugin tutorial” post. Stay tuned…

Russian CDN for jQuery

I recently discovered that the biggest Russian search engine Yandex (yeah, it’s bigger than Google in Russia) is using jQuery on its home page. It also hosts all previous jQuery versions on it’s fast gzip enabled servers just like Google and MIcrosoft do.

Because most of the Russian internet users have visited Yandex already, they already have it in their browser cache. I also did route tracing from Russian server to Google CDN servers and I was directed to the server in California, USA and pining the local Russian CDN server was at least 3 times faster.

Anyway, if you decide to use Russian CDN to host your jQuery files here are the links:

Minified versions
http://yandex.st/jquery/1.2.6/jquery.min.js
http://yandex.st/jquery/1.3.0/jquery.min.js
http://yandex.st/jquery/1.3.1/jquery.min.js
http://yandex.st/jquery/1.3.2/jquery.min.js
http://yandex.st/jquery/1.4.0/jquery.min.js
http://yandex.st/jquery/1.4.1/jquery.min.js
http://yandex.st/jquery/1.4.2/jquery.min.js

Non minified versions
http://yandex.st/jquery/1.2.6/jquery.js
http://yandex.st/jquery/1.3.0/jquery.js
http://yandex.st/jquery/1.3.1/jquery.js
http://yandex.st/jquery/1.3.2/jquery.js
http://yandex.st/jquery/1.4.0/jquery.js
http://yandex.st/jquery/1.4.1/jquery.js
http://yandex.st/jquery/1.4.2/jquery.js

jQuery UI links

http://yandex.st/jquery-ui/1.8.2/jquery-ui.min.js

Hosted versions
1.8.2, 1.8.1, 1.8.0, 1.7.3, 1.7.2, 1.7.1, 1.7.0, 1.6.0

jQuery UI modules can be downloaded seperately
http://yandex.st/jquery-ui/1.7.2/effects.blind.js
http://yandex.st/jquery-ui/1.8.0/jquery.effects.blind.min.js

Language files
http://yandex.st/jquery-ui/1.7.2/i18n/ui.datepicker-ru.js
http://yandex.st/jquery-ui/1.8.0/i18n/jquery.ui.datepicker-ru.min.js

jQuery UI CSS files (matches original directory names)
http://yandex.st/jquery-ui/1.8.0/themes/humanity/jquery.ui.all.min.css

iPhone / iPod detection using jQuery & JavaScript

In this post you will learn how to detect iPhone/iPod using javascript/jQuery, redirect your iPhone users to mobile version of your site using javascript and alternative and better way to redirect your visitors using server-side PHP code snippet.

The latest buzz around jQuery is upcoming jQuery mobile – support for mobile devices. Current jQuery core work fine on iPhone and iPod touch browsers and most of us have created a mobile version of our websites, developed or converted websites for others. Basically, jQuery is already being used on iPhone and iPod touch devices. Without any further ado…

Javascript code to detect iPhone and iPod browsers

// Return boolean TRUE/FALSE
function isiPhone(){
    return (
        (navigator.platform.indexOf("iPhone") != -1) ||
        (navigator.platform.indexOf("iPod") != -1)
    );
}

You might wonder why do we even need to detect if our website is ran on iPhone Safari or normal desktop Safar if jQuery works fine on both. Well, there are Safari specific CSS features that you might want to utilize and you need to know if the current browser is Safari, then you may also want to consider reducing resource consuming features like animations for iPhone version of your site.

Redirecting iPhone & iPod users

You may also use this script to redirect iPhone and iPod users to your website’s mobile version:

// Redirect iPhone/iPod visitors
function isiPhone(){
    return (
        (navigator.platform.indexOf("iPhone") != -1) ||
        (navigator.platform.indexOf("iPod") != -1)
    );
}
if(isiPhone()){
    window.location = "mob.example.com";
}

For example: if your website is www.example.com and you have a mobile version at mob.example.com, then put the following script to your www.example.com.

Redirect iPhone users using PHP

It is better to detect and redirect your iPhone users on the server-side. Here is a PHP code to redirect iPhone users:

// Redirect iPhone/iPod visitors
if(strpos($_SERVER['HTTP_USER_AGENT'], 'iPhone') ||
   strpos($_SERVER['HTTP_USER_AGENT'], 'iPod')){
      header("Location: http://mob.example.com");
}

User agent strings for your reference:

/*
User Agent String for iPhone
    Mozilla/5.0 (iPhone; U; CPU like Mac OS X; en) AppleWebKit/420+ (KHTML, like Gecko)
    Version/3.0 Mobile/1A543a Safari/419.3
    
User Agent String for iPod Touch
    Mozilla/5.0 (iPod; U; CPU like Mac OS X; en) AppleWebKit/420.1 (KHTML, like Gecko)
    Version/3.0 Mobile/3A101a Safari/419.3
*/

As final words, I would like to remind you that sometimes your visitors would not like to be redirected to mobile versions of your websites. That’s why your mobile version should always include a link to your non-mobile website. The above scripts can be rewrote to check if user has chosen not to be redirected. Either set cookie or a URL parameter.

jQuery mobile source code

If you want to download jQuery Mobile source code and look into it just like everybody else, we are all out of luck :(  As I mentioned in my previous post jQuery mobile facts, the source code will be available in October this year.

The jQuery Mobile source will not be in a separate jquery.mobile.js file. It will be right in the jQuery core. This means that jQuery team is fixing and improving jQuery core so that it works nicely in all major mobile phones and devices.

By the way, if you want to keep track of the jQuery mobile source code and be the first one to download it, when it is available, you should watch jQuery on GitHub.

The big part of the upcoming jQuery mobile is new UI components that work and render nicely in all mobile devices and degrade gracefully. So, keep an eye on jQuery UI as well. Here is the jQuery UI GitHub page.

Meanwhile you can read all jQuery mobile facts here.