Although I do not want to get into a semantics discussion regarding the parameters of slice(), I would think that it would be akin to javascript substring(starting Index, ending Index) but rather it appears to be similar to substr(starting Index, length) both zero referenced. The definition on page 452 seems to indicate parameters similar to substring().

Yes, I agree, the text and appendix are misleading, but the code is correct.

It is in fact identical to substring, but a bit counter intuitive.

"Hello World".substring(0,4) = "Hell"

i.e. the first four items, exactly like in the example in the book.

You need to think of the index being positioned in the spaces between the letters, instead of referring to a specific letter for each index.

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/- Sam Judson : Wrox Technical Editor -/

Think before you post: What have you tried?

Just bought the book and have found what seem to be some minor errors. Will post later. But I'm reading front to back. Best resource for jQuery development that I've seen. Congratulations on a great and very high quality book.

But first a question on $(selector) syntax:

Why use $(div#mydiv) when $(#mydiv) is correct syntax according to the jQuery API?

Clearly the leading 'div' is redundant since, by definition, mydiv can only refer to one element.

Generally #mydiv will I think be slightly faster. But when you say "by definition" mydiv can only refer to one element, what definition are you referring to? There is nothing to stop someone giving the same ID to two elements - they are just attribute values. (Doesn't mean it would be valid HTML however).

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/- Sam Judson : Wrox Technical Editor -/

Think before you post: What have you tried?

But $() will only select the first one it finds. ID is not .class.

That's true.

I think whichever you find easier to read is the most important thing. As the jquery docs state:

__________________
/- Sam Judson : Wrox Technical Editor -/

Think before you post: What have you tried?