P T Withington
ptw at pobox.com
Tue Jun 27 14:38:38 PDT 2006
AFAICT the canonical way to measure elapsed time in ECMAScript
requires taking the difference between two expressions of the form:
On the Mac SWF plug-in, this expression yields a value that appears
to have 10us precision (ms as a float with 2 digits of precision).
expression yields a value with only ms precision (as if it had been
processed by TimeClip).
I am wondering if the new standard should encourage implementors to
return a value with as much precision as the underlying hardware/OS
permits? (And to optimize this idiom, which on the face of it looks
quite expensive: creating a Date object only to extract the value
attribute and discard the object.)
Or, is there already a better, more accurate way to measure elapsed
time? Or, should there be?
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