Web IDL

1. Interface definition language

   IDL syntax for interfaces, dictionaries and enums.

2. Types

   Primitive, buffer, union and nullable types.

3. Extended attributes

   [Exposed], [SameObject], [CEReactions] etc.

4. JavaScript binding

   Mapping IDL to ECMAScript values and objects.

5. Namespaces and interface mixins

   Namespaces and mixins.

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