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What is the purpose of the method getUserData(key)?

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What is the purpose of the method getUserData(key)?

(a) Returns the associated object

(b) Gets the user data

(c) Returns the user data

(d) Gets the user key

This question was posed to me during an interview.

This interesting question is from Node Operations in JavaScript in section Document Object Model and Event Handling in Javascript of JavaScript

1 Answer

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Right choice is (a) Returns the associated object

The best explanation: The method getUserData(key) returns the object associated to a key on a this node. The object must first have been set to this node by calling setUserData with the same key.

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