How does one access HTML Canvas elements in Opa?

Is it p开发者_开发知识库ossible to access HTML5 canvas elements in Opa?

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Yes it is possible to access HTML5 canvas elements in Opa!

See the online API doc: http://opalang.org/resources/doc/index.html#canvas.opa.html/!/value_stdlib.core.xhtml.Canvas

And you know what? Hhuho pushed on github a collaborative whiteboard based on html5 canvas: https://github.com/hhugo/OpaWhiteBoard

You can play with it here: http://canvas.opalang.org/