Hi,
I'm a little confused by this code in index.html:
```
canvas: (function() {
var canvas = document.getElementById('canvas');
canvas.addEventListener("webglcontextlost", function(e) {
alert('WebGL context lost. You will need to reload the page.');
e.preventDefault(); }, false);
return canvas;
})(),
```
What's the deal with the weird `(function(){...})();` syntax? Other
functions in index.html don't seem to do this.
Is it something to do with only running the function code once? Otherwise
it seems like a weglcontextlost listener would be added each time canvas()
was called!
Bye,
Mark
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