- From: Tab Atkins Jr. <jackalmage@gmail.com>
- Date: Wed, 19 Jun 2013 11:20:32 -0700
- To: Benoit Jacob <jacob.benoit.1@gmail.com>
- Cc: WHATWG <whatwg@lists.whatwg.org>
On Wed, Jun 19, 2013 at 11:17 AM, Benoit Jacob <jacob.benoit.1@gmail.com> wrote:
> So let's look at the naive application usage pattern for supportsContext:
>
> if (canvas.supportsContext("webgl")) {
> context = canvas.getContext("webgl");
> }
>
> The problem is that the same can be achieved with just the getContext call,
> and checking whether it succeeded.
The problem that supportsContext() solves, and which was brought up
repeatedly during the drive to add this, is that spinning up contexts
can be expensive.
~TJ
Received on Wednesday, 19 June 2013 18:21:16 UTC