Operator Type:
Operator Scope of Action:
Operator Purpose:
Operator First Added:
Operator Last Altered:
Function [other Function type actions]
List [operators of similar scope]
Dictionary, Set & List operations [other Dictionary, Set & List operations operators]
Baseline
As at baseline
List/Set[itemNum]
sourceNum is the zero-based item number in the referenced List or Set.
Elements in lists, sets, may be extracted (referenced) with the bracket operator:
$MyList[1]
This has the same effect as List/Set.at( ), but may be more convenient. Both
$MyList[1]
$MyList.at(1)
Returns the second list item (as list item addresses are zero-based).
This syntax can also assign values to specific elements of lists. For example,
$MyList=[apple; pear; plum; cherry];
$MyList[1]="persimmon";
Will replace "pear" with "persimmon".
Nested lists
MyList = [cow;bee;[fish;whale];ant]
$MyList[2][1] gives "whale"