Get Array Element Operator []

Syntax	`anArray[anIndex]`
Semantics	The operator `[i]` returns the `i`-th element of the array. The first element has the position 0. `anIndex` can be a static integer literal, an object of type Integer, or an action script language or expression returning an integer.
Substitutables	`anArray`	Can be any variable or object attribute having the type Array.
	`anIndex`	Can be any expression that evaluates to an integer.
	It is not possible to use class operations as index function – only built-in action script language operations are allowed.
Examples	NONE `set arrayElement = inputContainer.myList[0]; set arrayElement = anArray[anArray.count() - 1].mySubList; set arrayElement = anArray[indexVariable];`

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