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バージョン:25.2

isObjectType

  • function
  • The is a operator can test the objectType of any object. When testing whether an object is of a particular type other than the standard types, the object is sent an isObjectType function message, with the type as its only parameter. The built-in default implementation of the isObjectType function checks whether the requested type is among the items of the object's objectType property (which may be a single type or may be a list of several types).