Ask MDN

Ask MDN

@AskMDN
For an hour each week we get a bunch of experts together to answer your questions about Web technologies.
Text follow AskMDN to 40404 in the United States
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We'll be back in the new year! We've learnt a lot from the previous sessions and can't wait to implement some new ideas. Watch this space.
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There's no Ask MDN this week We'll update you when we have a date for the next session! :)
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We're aware of some issues with the dashboard. We'll work on fixing it up and introducing some new functionality soon.
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Please keep the discussion going on if you've got something to talk about or ask re: HTML5 canvas.
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That's it for this week! Massive thanks to @ and @ for helping today.
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Q16 from @: Any plans to make drawImage accept negative values for x and y? (WebKit allows this)
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Q15 from @: When should I do my animations without using canvas, and when should I use it?
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Q14 from @: Are fillRect() and putData() still the only ways to draw a single pixel? Is there a faster way?
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Q13 from @: Is it possible to color-tint graphics in real-time when drawing an image to the canvas, if so how?
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Q12 from @: Will canvas take Access-Control-Allow-Origin into account anytime soon?
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Q11 from @: How fast can canvas update? Does it depend on the platform?
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Q10 from @: Why was the 'darker' compositing mode removed?
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Q9 from @: Any workarounds for this problem with alpha transparency on the Android browser?
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Q8 from @: Any plans to add packed-pixel support for the 2D context? imageData.data[index] = 0xrrggbbaa or similar
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Q7 from @: What enhancements were done for HTML5 Canvas gaming on iOS5 & Android4?
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Q6 from @: I can't use canvas for uni as I need academic research on it. Do you know of academic papers on canvas?
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Q5 from @: What applications do you see canvas replacing that are currently done by other means?
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Q4 from @: Is there anything you think HTML5 canvas shouldn't be used for?
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Q3 from @: Will improved functionality like hw acceleration remove the need for games to implement canvas redraw regions?
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