Re: This (Javascript) function has an onClick event that calls a function that calls This function

"Dr J R Stockton" <jrs@xxxxxxxxxxxxxxxxxx> wrote in message
news:IhwFb5F8$kPFFw0N@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
In message <453dcb16$0$338$e4fe514c@xxxxxxxxxxxxxx>, Tue, 24 Oct 2006
10:13:07, Maarten Wiltink <maarten@xxxxxxxxxxxxxxxxxx> writes

[Javascript] Functions are not resolved ahead of
time, but only when they're actually called. At that time, the entire
source is scanned, so forward declarations aren't necessary.

I agree with the second half of your last sentence, but not with the
first half (that would be intolerably slow).
[...]
the names and addresses of the functions will be put in a list during
a pre-execution scan; during execution, it is only necessary to seek
within the list (which can be done more or less efficiently).

Would you believe that I deleted some extra lines from that paragraph
where I was going to say that this _behaviour_ did not preclude a
compiled _implementation_?

The effect is that the entire source is scanned. How this effect is
obtained is irrelevant except for performance considerations. The
scanning might be postponed until necessary; then the source _would_
be scanned the first time an unknown function was encountered.

Groetjes,
Maarten Wiltink


.

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