> Last week at OOPSLA, we live-coded a timer in Flapjax, using a custom
> REPL.  I've added this REPL to the demos on the Flapjax website:

> http://www.flapjax-lang.org/demos/timer.html

> See the popup in the bottom-right corner for the timer's code.  Other
> than the built-in timer UI and the showTime function, it is a generic
> REPL.  You can use it to play around with arbitrary expressions.  So,
> I've posted a version without the timer UI:

> http://www.flapjax-lang.org/repl.html

> This REPL is more interesting than it looks: you have access to
> Flapjax's DOM constructors.  Try entering these three lines:

> elt = INPUT({ type: "button", value: "Click Me!" })
> clicksE = $E(elt, "click")
> clicksE.snapshotE(timerB(1000))

> Two things to note:

> 1. You can break the REPL.  It is not bulletproof.  I've made an
> attempt to isolate the REPL's code from the user's code.  But, it's
> still a hack that uses eval.

> 2. It doesn't work on IE at the moment.  (Suggestions/patches
> welcome.)  I've tested it on Firefox and Safari.

> Arjun

> The repl demo shows a blank page the body is empty.

> Fred

> On Tue, Nov 3, 2009 at 02:12, Arjun Guha <arjun.g...@gmail.com> wrote:

>> Last week at OOPSLA, we live-coded a timer in Flapjax, using a custom
>> REPL.  I've added this REPL to the demos on the Flapjax website:

>> http://www.flapjax-lang.org/demos/timer.html

>> See the popup in the bottom-right corner for the timer's code.  Other
>> than the built-in timer UI and the showTime function, it is a generic
>> REPL.  You can use it to play around with arbitrary expressions.  So,
>> I've posted a version without the timer UI:

>> http://www.flapjax-lang.org/repl.html

>> This REPL is more interesting than it looks: you have access to
>> Flapjax's DOM constructors.  Try entering these three lines:

>> elt = INPUT({ type: "button", value: "Click Me!" })
>> clicksE = $E(elt, "click")
>> clicksE.snapshotE(timerB(1000))

>> Two things to note:

>> 1. You can break the REPL.  It is not bulletproof.  I've made an
>> attempt to isolate the REPL's code from the user's code.  But, it's
>> still a hack that uses eval.

>> 2. It doesn't work on IE at the moment.  (Suggestions/patches
>> welcome.)  I've tested it on Firefox and Safari.

>> Arjun

> At first it doesn't work on my Linux Firefox 3.5 either, but after I
> opened Firebug's console (and clicked here and there) I was able to
> input...weird.

> The repl demo shows a blank page the body is empty.

> > Does the timer demo work in Windows FF3.0.15? It doesn't do
> > anything, just shows an empty progress bar, a button and the
> > solution in the lower corner. Nothing happens when click is pressed.
> > I cannot enter any text in the solution window where the code is
> > either.

> > The repl demo shows a blank page the body is empty.

> I fixed this (tested on FF3.0.12 on a Mac).

> I made some changes to Flapjax's DOM manipulation code that used
> Element.children, which is only supported by IE8/Safari4/FF3.5.  I've
> reverted to using Element.childNodes, which works on older browsers.

> In the future, I'll use older browsers while testing.

> Arjun

> Fred

> > REPL works now on Windows FF 3.0.14. timer still doesn't do anything.

> > Fred

> Could you be more specific?  Here's what it's supposed to look like,
> after you've typed in the solution:

> http://www.cs.brown.edu/~arjun/tmp/timer.png<http://www.cs.brown.edu/%7Earjun/tmp/timer.png>

> (The mouse image is a little jittery--don't know why).

> Arjun

> Fred

> On Tue, Nov 3, 2009 at 22:36, Arjun Guha <arjun.g...@gmail.com> wrote:

> > REPL works now on Windows FF 3.0.14. timer still doesn't do  
> anything.

> > Fred

> Could you be more specific?  Here's what it's supposed to look like,
> after you've typed in the solution:

> http://www.cs.brown.edu/~arjun/tmp/timer.png

> (The mouse image is a little jittery--don't know why).

> Arjun

> <flapjax.jpg>

> I just installed Firefox 3.0.15 on Windows XP.  It's my first
> installation, so no addons.

> Both the timer and standalone REPL work fine.  I doubt it's an issue
> with a minor point release.  (I can't seem to get Firefox 3.0.14 from
> mozilla.org
> . I'm not getting it from 3rd-party sources since I don't run a virus
> checker.)

> I think the next step in debugging this is to give me the output from
> your error console.  Specifically:

> 1. Tools -> Error Console -> Clear
> 2. http://www.flapjax-lang.org/demos/timer.html
> 3. Tools -> Error Console , and then screenshot (apparently you can't
> copy).

> A Firebug log will do too.

> Arjun

> I can't figure out how to get FF 3.0.14
> On Nov 3, 2009, at 11:21 , Fred Janon wrote:

> > Here is a screen shot on Windows FF 3.0.14. There is no area to
> > input anything. The box with the solution is there though (not on
> > the screen shot. I had no idea what it was supposed to do until I
> > saw your screenshot.

> > Fred

> > On Tue, Nov 3, 2009 at 22:36, Arjun Guha <arjun.g...@gmail.com> wrote:

> > > REPL works now on Windows FF 3.0.14. timer still doesn't do
> > anything.

> > > Fred

> > Could you be more specific?  Here's what it's supposed to look like,
> > after you've typed in the solution:

> > http://www.cs.brown.edu/~arjun/tmp/timer.png<http://www.cs.brown.edu/%7Earjun/tmp/timer.png>

> > (The mouse image is a little jittery--don't know why).

> > Arjun

> > <flapjax.jpg>