How to initialize an array in AFL?

AFL Programming
1

I am new to AFL coding and want to understand how to initialize an array?

2 
array = 0; // init with zero

That's it.

3

does it mean it will be of dynamic length and with all values as 0?

4

It is not of dynamic length, all arrays are of size BarCount indexed from 0 to BarCount - 1.
https://www.amibroker.com/guide/h_understandafl.html

Having said that, in a bit more detail, the variable BarCount itself can be dynamic in the context of QuickAFL
http://www.amibroker.com/kb/2008/07/03/quickafl/ read here for more.
and
http://www.amibroker.com/kb/2014/09/22/do-not-make-assumptions-on-number-of-bars/

5

Another beneficial thread to review is:

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