> > *Uncaught ReferenceError: $ is not defined * > Is related to the first error. Most probably because you're using the JQuery '$' symbol in your own code.
But the first error makes it sound as though you're not using matching brackets properly. Which is kind of silly, since it's an opening bracket. So, I'd check for typos in your files . . . on all the lines prior to the line where Chrome's element inspector says it's having an error. On Tue, May 12, 2015 at 3:23 PM, William Hermans <yyrk...@gmail.com> wrote: > Try using the devlopers version of JQuery. Sometimes the minified versions > can cause unexpected problems. > > If that does not solve your problem then I would have to read through your > whole code base to see for myself what is going on - And I'm not exactly > prepared to do that . . . > > On Mon, May 11, 2015 at 8:23 PM, <reid.neureut...@gmail.com> wrote: > >> Having this same problem now. Did you ever figure this out? >> >> On Saturday, October 18, 2014 at 5:39:21 PM UTC-4, jw wrote: >>> >>> I'm attempting to write a basic html page to control hardware on the >>> BeagleBone Black. The HTML file looks like this: >>> <!DOCTYPE html> >>> <html> >>> <head> >>> <script src="/socket.io/socket.io.js"></script> >>> <script src="http://code.jquery.com/jquery-2.1.1.min.js";></script> >>> <script> >>> var socket = io.connect(); >>> socket.on('ledstatus', function (data) { >>> console.log(data); >>> $('body').css('background-color', data); >>> }); >>> >>> function ledOn(){ >>> socket.emit('led', 'on'); >>> } >>> >>> function ledOff(){ >>> socket.emit('led', 'off'); >>> } >>> </script> >>> </head> >>> <body> >>> <input type="button" name="on" id="onButton" value="on" >>> onClick="ledOn();"> >>> <input type="button" name="off" id="offButton" value="off" >>> onClick="ledOff();"> >>> </body> >>> </html> >>> >>> And the .js file looks like this: >>> var app = require('http').createServer(handler); >>> var io = require('socket.io').listen(app); >>> var fs = require('fs'); >>> var bb = require('bonescript'); >>> >>> app.listen(8090); >>> >>> console.log('Server running on: http://' + bb.getPlatform().ipAddress + >>> ':8090'); >>> >>> bb.pinMode('USR3', 'out'); >>> bb.digitalWrite('USR3', 0); >>> >>> function handler (req, res) { >>> fs.readFile('index.html', >>> function (err, data) { >>> if (err) { >>> res.writeHead(500); >>> return res.end('Error loading index.html'); >>> } >>> >>> res.writeHead(200); >>> res.end(data); >>> }); >>> } >>> >>> io.sockets.on('connection', function (socket) { >>> socket.on('led', function (data) { >>> console.log(data); >>> if (data == 'on') { >>> bb.digitalWrite('USR3', 1); >>> socket.emit('ledstatus', 'green'); >>> socket.broadcast.emit('ledupdate', 'green'); >>> } >>> else { >>> bb.digitalWrite('USR3', 0); >>> socket.emit('ledstatus', 'red'); >>> socket.broadcast.emit('ledupdate', 'red'); >>> } >>> }); >>> }); >>> >>> And it works just fine. The problem is that my application will not have >>> internet access which makes this line problematic: >>> <script src="http://code.jquery.com/jquery-2.1.1.min.js";></script> >>> >>> So I downloaded jquery-2.1.1.min.js to the same directory as the HTML >>> and .js files, and changed the above line to: >>> <script src="jquery-2.1.1.min.js"></script> >>> >>> And it stops working, and I get the following errors when I use Chrome's >>> inspect element tool: >>> Uncaught SyntaxError: Unexpected token < >>> Uncaught ReferenceError: $ is not defined >>> >>> Anybody know what's going on here? >>> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to beagleboard+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. >> > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
