Epiphany Javascript console.log()

[ofey]

Hi,
I am learning a little javascript and using Epiphany as the browser on a RPi.
In the book i am using, 'Eloquent Javascript', most examples output with console.log() but I can't see how to see this output in Epiphany.
Is there no console output in Epiphany?
Any ideas?
Thanks,
Shane

[r3d4]

>> Is there no console output in Epiphany?

perhaps not you can allwats create the console object and create a log() function in it ...

or create a div and push the log content to that ...

Sorry cant be much help .

[ofey]

create the console object and create a log() function in it ... or create a div and push the log content to that ...

Thanks for your reply. Objects are the next chapter, so this is a little beyond me at the moment.
Should try a different browser?
Thanks,
Shane

[r3d4]

create the console object and create a log() function in it ... or create a div and push the log content to that ...

Thanks for your reply. Objects are the next chapter, so this is a little beyond me at the moment.
Should try a different browser?
Thanks,
Shane

Well im no expert (and i dont have Epiphany on a pi to hand ... perhaps it has so other way of looking at logs/errors ?? )
but i would just skip a head a chaper to read up on objects and or use this

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var console = {} ; // <---- This is an object called console 

console.log = function (str) { alert( str ) ; }  
// -----
// you can write the above in a diffrent way like 

var console = { "log" : function (str){ alert(str) ;  }     } ; 

Json.org has some good diagrams of the object notation used en JS .


>> Should try a different browser?
Realy it is up to you , when i was learning js console.log() was not avalable as a 'built in function' of the browser
so you can survive without it if need be , one alternative method would be to just use

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 alert('somthing happened') ;  

[DougieLawson]

Should try a different browser?

Firefox with the web developer (on Windows) stuff is going to be much better.

Develop & debug on Windows, deploy on Raspberry Pi.

[ofey]

Hi,
r3d4 thanks i will just use alert() for the moment.
json.org does have very clear diagrams. Thanks for this.

Develop & debug on Windows, deploy on Raspberry Pi.

Thanks Dougie, I think this the best option.
Shane

[r3d4]

Firefox with the web developer (on Windows) stuff is going to be much better.

Develop & debug on Windows, deploy on Raspberry Pi.

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\r\n

[ofey]

\r\n

and this means it is all the same?
Like carriage return / newline... probably a techie joke...

[DougieLawson]

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\r\n

I'll see your carriage return & newline and raise you

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+.;

I assume it's some kind of poker bidding, because it doesn't make any sense otherwise.

[ofey]

...some kind of poker bidding, ... it doesn't make any sense otherwise.

Glad to hear that!

[r3d4]

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\r\n

I'll see your carriage return & newline and raise you

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+.;

I assume it's some kind of poker bidding, because it doesn't make any sense otherwise.

Its the first thing i can remember about working between windows n other os that wiill trip up any one using default text editors ; that dont display chars you cant see .
Perhaps this is no longer a problem ??

i did not see the OP didnt mention windows ..
>> 'Develop & debug on Windows, deploy on Raspberry Pi.'

to me apperars like pointing some asking for directions the wrongway

[DougieLawson]

The newline vs carriage return/newline is not a problem with Javascript.

If it ever is a problem then dos2unix is the simple tool to undo the \r\n stuff.

[jweob]

I'm launching epiphany from the command line using SSH using "epiphany-browser -a --profile ~/.config <URL>"

console.log() messages appear in the SSH terminal output

[r3d4]

If it ever is a problem then dos2unix is the simple tool to undo the \r\n stuff.

True but i would guess that the 'command line' tools ect is a bit further along the 'learning curve' for most who wander in off the web scripting js !

[gadgetoid]

I hate to resurrect a dinosaur thread, but in this case I think it's warranted.

This thread turns up in searches about how to enable the JS debugger, so for the help of future JS tinkerers, I'd like to supply the answer:

Open up Terminal, and run Epiphany like so:

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EPHY_ENABLE_INSPECTOR=true epiphany

Developing and debugging on Windows/Chrome is not always the right answer, since you can very easily fall into traps set by ECMA Script 6 only features which are not supported in Epiphany. IE: Something can work absolutely *fine* on Windows/Chrome but fail in Epiphany 3.8.x on the Pi.

The magic words above will give you a clunky albeit functional debugger for catching any incompatibilities which slip through.

[r3d4]

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EPHY_ENABLE_INSPECTOR=true epiphany

The magic words above will give you a clunky albeit functional debugger for catching any incompatibilities which slip through.

Thanks!
(from a current tinkerer)