Yes, the JS running in the HTML needs a Module object, so that we can find the canvas element to render to, text area to show stdout to, and so forth. If you emit an html file instead of js, that will be emitted for you. Otherwise, you need to create it in the HTML.
It's definitely an error that we fail in this way, though. I fixed this on incoming, we'll show a warning now, and provide some basic Module functionality if one is not defined (writing to console.log for stdout, etc.) On Tue, Aug 25, 2015 at 11:59 PM, awt <[email protected]> wrote: > Hi, > > I was trying to generate a javascript output for a simple hello world > program and insert it into my own html file. These are my build commands: > > emcc helloworld.cpp --proxy-to-worker -o helloworld.js > > This is my helloworld.html file: > > <html> > <header></header> > <body> > <script src="helloworld.js"></script> > </body> > </html> > > This is my cpp file: > > #include <stdio.h> > #include <iostream> > > using namespace std; > int main() { > cout << "HelloWorld" << endl; > return 0; > } > > I get the following error: > Uncaught ReferenceError: Module is not defined > > at the following line of code in helloworld.js: > > ['mousedown', 'mouseup', 'mousemove', 'DOMMouseScroll', 'mousewheel', > 'mouseout'].forEach(function(event) { > Module.canvas.addEventListener(event, function(event) { > worker.postMessage({ target: 'canvas', event: cloneObject(event) }); > event.preventDefault(); > }, true); > > Do I need to manually declare the Module object in helloworld.html? Or > should I just include helloworld.worker.js in helloworld.html directly? > > -- > You received this message because you are subscribed to the Google Groups > "emscripten-discuss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
