ActionScript 2.0 Language Reference 
ActionScript 2.0 Language Reference |
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| ActionScript language elements > Operators > void operator | |||
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void expression
The void operator evaluates an expression and then discards its value, returning undefined. The void operator is often used in comparisons using the == operator to test for undefined values.
Availability: ActionScript 1.0; Flash Player 5
expression : Object - An expression to be evaluated.
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