# Is Javascript/Flash always available? RJS/ajax views

**URL:** <https://www.ruby-forum.com/t/is-javascript-flash-always-available-rjs-ajax-views/93117>\
**Category:** Rails\
**Created:** [April 27, 2007, 8:52pm UTC](https://www.ruby-forum.com/t/is-javascript-flash-always-available-rjs-ajax-views/93117 "2007-04-27T20:52:34Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jruyle](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/d2c977/32.png) [@jruyle](https://www.ruby-forum.com/u/jruyle)\
**Post date:** [April 27, 2007, 8:52pm UTC](https://www.ruby-forum.com/t/is-javascript-flash-always-available-rjs-ajax-views/93117/1 "2007-04-27T20:52:34Z")

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We are setting off on a development milestone for a rails app. Our  
preference is to provide a RJS(Ajax) based intuitive interface. We would  
rather avoid the degrade option when JS is turned off in the browser.  
Our estimates as almost a 40% extra effort to implement the degrade  
option.

In your experience, how often do customers/users have Javascript turned  
“off” in their browser? In your experience, is the “degrade to non-Ajax”  
views a nice-to-have or a must-have?

The answer will probably vary by your user group. But I am looking for  
some ball-park numbers based on your experience with external customers  
and users.

If others are interested in similar data for availability of  
flash/cookies etc., I will send out a survey that can be beneficial for  
everybody facing these decisions.

Thanks.

JR.