ActionScript 2.0 Language Reference 
ActionScript 2.0 Language Reference |
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typeof(expression)
Evaluates the expression and returns a string specifying whether the expression is a String, MovieClip, Object, Function, Number, or Boolean value.
Availability: ActionScript 1.0; Flash Player 5
expression : Object - A string, movie clip, button, object, or function.
String - A String representation of the type of expression. The following table shows the results of the typeof operator on each type of expression.
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Expression Type |
Result |
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String |
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Movie clip |
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Button |
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Text field |
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Number |
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Boolean |
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Object |
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Function |
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