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The realization of duck-type discrimination method based on JavaScript interface

Source: Internet
Author: User
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The core of duck-type discrimination method: A class implements the main purpose of the interface: to implement the methods in the interface (detection method)

JavaScript does not have the concept of interface, the implementation of the interface is mainly 3 kinds of annotation description, attribute detection, duck type discrimination, which duck-type identification is the most commonly used

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        DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01//en" "HTTP://WWW.W3.ORG/TR/HTML4/STRICT.DTD" >

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