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已废弃
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

属性

TypeInfo.typeName 只读
Returns a DOMString.
TypeInfo.typeNamespace 只读
Returns a DOMString.

方法

TypeInfo.isDerivedFrom()
Returns a Boolean

常量

Constant Value
DERIVATION_RESTRICTION 1
DERIVATION_EXTENSION 2
DERIVATION_UNION 4
DERIVATION_LIST 8

规范

Specification Status Comment
Document Object Model (DOM) Level 3 Core Specification
TypeInfo
Obsolete Initial definition

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