Syntax too strict

[thinsoldier]

The #1 thing people just starting out ask me is if it matters exactly where the ; and { and ( are placed.

In reality it doesn't. But in jsdares If I say

function foo()
{
stuff;
}

instead of

function foo() {
stuff;
}

it fails to run.

That is too strict in my opinion.

Also it doesn't seem to allow for loops inside of functions:

function automate (command) {

for( var i=0; i<command.length; i++) {
robot.drive( command[i] );
}
}

and doesn't seem to accept any kind of array syntax:
automate( [1,6] );

Is there a list of what is and isn't allowed?

And it would be nice if people could register with an existing account:
Google
Facebook
Twitter
BrowserID
OpenID
Other

[janpaul123]

Yeah I agree that restricting newlines there is a bit too strict. A lot of restrictions are there so implementing all the cool stuff is easier, but the restrictions you mention serve no purpose.

It seems that there is a bug with arrays, thanks for bringing it to my attention! I'll have a closer look at that.

Registering with an existing account would be brilliant, but I don't have time for implementing that right now... :(

Thanks a lot for your detailed list!

JP

[thinsoldier]

Forgot to tell you thanks for the great site. I'm making my wife use it.
And a cousin who's been trying to learn JS forever absolutely loves the
robot exercises.

On Thu, Jan 10, 2013 at 5:02 PM, Jan Paul Posma [email protected]:

Yeah I agree that restricting newlines there is a bit too strict. A lot of
restrictions are there so implementing all the cool stuff is easier, but
the restrictions you mention serve no purpose.

It seems that there is a bug with arrays, thanks for bringing it to my
attention! I'll have a closer look at that.

Registering with an existing account would be brilliant, but I don't have
time for implementing that right now... :(

Thanks a lot for your detailed list!

JP

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/28#issuecomment-12121155.

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[jergason]

Perhaps you could use Esprima to parse the code and compare the parse trees?

[janpaul123]

@jergason That would definitely be the way to go. It would take a bit of effort though to make all the interactions work with full Javascript support.

[dawnerd]

I just noticed that you can't use a lot of core js methods. Trying using Math. You get an error saying the variable name cannot be found.

[janpaul123]

@dawnerd: Not quite: this can be configured per dare. In the first couple of dares Math has indeed been disabled. But when it is enabled, most of the methods and constants are accessible: https://github.com/janpaul123/jsdares/blob/master/jsmm-applet/output/output.math.js

[benjohnbarnes]

Can you allow code to be entered in any valid syntax, but reformat it (on line feed, perhaps) to the required syntax for your code augmentation / visualisations?