Variant
Description
The Variant class defines an object that can represent many types of data. Each Variant stores what type of data it currently represents, as well as the data. The var type in FlexScript uses the Variant.
Types
The type of a Variant is determined when it is assigned a value. When it is assigned to a number, it becomes a VariantType::Number. When it is assigned a treenodearray, it becomes a VariantType::TreeNodeArray. If it is not assigned a value, it becomes a VariantType::Null. Note that the Null type is not equal to a Variant with number data of 0.
| Type | Description |
|---|---|
| VariantType::Null | Stores no value |
| VariantType::Number | Stores a double value |
| VariantType::String | Stores a string value |
| VariantType::TreeNode | Stores a NodeRef value |
| VariantType::IntArray | Stores an intarray value |
| VariantType::DoubleArray | Stores an doublearray value |
| VariantType::StringArray | Stores an stringarray value |
| VariantType::TreeNodeArray | Stores a treenodearray value |
You can get the type of a variant by accessing its .type member.
Methods
- size() If this variant is representing an array, this returns the size of the array. If it is a Null variant, size() returns 0. Otherwise, it returns 1.
- operator[](int) If this variant is representing an array, you can use the [] operator to get elements by index (1-based). If it is not representing an array, it returns a copy of itself.
- c_str() If this variant is representing a string, it returns a pointer to that string. Otherwise, it returns a pointer to an empty string.