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Block WITH Operator
The block with operator is a powerful construct for acting on an object instance.
Example:
The code above is functionally equivalent to:
Nesting WITH
MVEL has support for deep graph hierarchies using 'with' and inline arrays, lists and maps:
To be able to use the 'with' keyword in nested structures and in such a way that it returns a value you must encase the keyword and it's following curly braces in parenthesis, i.e. ( with(...) {...} ).
The above deep graph assignment is the equivalent of:
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