IsMobile a simple JS library for detecting mobile devices

GitHub Address: Https://github.com/kaimallea/isMobile

Example

(function () { var mobile_site=' Http://m.xx.com/index.html ', No_redirect=' Noredirect ';If(IsMobile.Any){if  (document. cookie. indexof (No_redirect=== -) {document.= mobile_site  })  (    

Why use IsMobile?

I had a specific requirement for a project if I created this:

-Redirect all IPhones, iPods, Android phones, and seven inch devices to the mobile site.

A completely separate site had been created for mobile devices, so feature detection/graceful degredation/progressive Enha Ncement were out of the question. I had to redirect.

I couldn ' t do detection on the back-end, because the entire site is cached and served by Akamai; I had to do the detection client-side.

So I resorted to UA sniffing.

I tried to keep the script small ( currently ~1.3k bytes, minified ) and simple, because it would need to execute in the, which are generally a bad idea, since JS blocks downloading and rendering of anything else while it parse S and executes. In the case of mobile redirection, I don ' t mind so much, because I want to start the redirect as soon as possible, before The device has a chance to start downloading and rendering stuff. For Non-mobile platforms, the script should execute fast, so the browser can quickly get back to downloading and rendering .

How it works

IsMobile runs quickly on page load to detect mobile devices; It then creates a JavaScript object with the results.

Devices detected by IsMobile

The following properies of the isMobile object would either be true orfalse

Apple devices

• isMobile.apple.phone
• isMobile.apple.ipod
• isMobile.apple.tablet
• isMobile.apple.device(any mobile Apple device)

Android devices

• isMobile.android.phone
• isMobile.android.tablet
• isMobile.android.device(any mobile Android device)

Windows devices

• isMobile.windows.phone
• isMobile.windows.tablet
• isMobile.windows.device(any mobile Windows device)

Specific seven inch devices

• isMobile.seven_inch
  • trueIf the device is one of the following 7″devices:
    • Nexus 7
    • Kindle Fire
    • Nook Tablet 7 inch
    • Galaxy Tab 7 inch

"Other" devices

• isMobile.other_blackberry_10
• isMobile.other_blackberry
• isMobile.other_opera(Opera Mini)
• isMobile.other_firefox

Aggregate groupings

• isMobile.any-Any device matched
• isMobile.phone-Any device in the ' phone ' groups above
• isMobile.tablet-Any device in the ' tablet ' groups above

IsMobile a simple JS library for detecting mobile devices