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No problem, that's why we are here for. To answer your questions:
It is also a nice way of trying out some basic techniques outside After Effects or Flash in a fully dynamic runtime environemnt. most books are web- or Flash-centric, simply because obviously this is a much, much bigger market than scripting or expressions in AE. Imagine perhaps 5 million After Effects users out of which only 500000 use expressions/ scripting and now compare that to 500 million agencies, web hosting companies, private people and so on who maintain a website or make a business out of making them for other people.
would refer to the main browser window, and
would tell you if it is the current active browser window. Similar realtionships exist between other items. This will become clear to you if you ever do JSX scripts, where these dependencies are used to express e.g. how a footage item belongs to the project structure or which button belongs on which panel.
The other things that are important to you is anything that begins with if(), while(), for(), case() and so on. These key phrases are functions that contain the actual logic inside them and it may be interesting to disect and learn them. Inside such functions you will also find the other essential methods for comparing variables (==, !=), incrementing and decrementing counters (+=,++ and so on) plus ways of making decisions based on whether some of the counters reach a specific value or a condition is met:
Furthermore you will see how to return variables or interrupt the function flow if it does not yield results (return, break, continue).
A special part of any programming is mathematics. Simple operators like +, -, * and / can be defined straight away, for more complex stuff you will often use a function from the Math. class. For instance
A last thing to take a look at are the interaction methods like onUp(), onClick() and so on. They have no relevance for expressions, but may come into play for scripts.
I read your answer in hurriedness
and I need to read it again
from your answer ,I understand the following below :
1- I must learn or focus on some points of java script which help me in Ae
2- I don't need to learn HTML
3- you are very kind man
thank you very much
I'm impressed with Mylenium's post as well. Kudos.
These sites will help you a lot. Read thru them many many times.
As mentioned by Robert, the language itself already existed (was defined in rough form some time around 1991). What we owe to Netscape is for the most part DOM and a few browser specific implementation features...
I found it with your help. Thanx!