Right: the barrier to setTimeout functionality is that ECMAscript does not define a concurrency model.
If we can define a concurrency model, then we can build setTimeout. Two things off the top of my head to consider: - timer granularity - forbidding eval-like syntax OTOH, if we have an event-loop system with conditionals, we might not need setTimeout because it would be trivial to build from primitives. But it might be a handy interface if ES starts to go toward the "batteries included" model. Wes -- Wesley W. Garland Director, Product Development PageMail, Inc. +1 613 542 2787 x 102
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