@callback <namepath>
The @callback tag provides information about a callback function that can be passed to other functions, including the callback's parameters and return value. You can include any of the tags that you can provide for a @method.
Once you define a callback, you can use it in the same way as a custom type defined with the @typedef tag. In particular, you can use the callback's name as a type name. This allows you to indicate that a function parameter should contain a certain type of callback.
If you want a callback to be displayed with the type definitions for a specific class, you can give the callback a namepath indicating that it is an inner function of that class. You can also define a global callback type that is referenced from multiple classes.
/**
* @class
*/
function Requester() {}
/**
* Send a request.
* @param {Requester~requestCallback} cb - The callback that handles the response.
*/
Requester.prototype.send = function(cb) {
// code
};
/**
* This callback is displayed as part of the Requester class.
* @callback Requester~requestCallback
* @param {number} responseCode
* @param {string} responseMessage
*/
/**
* @class
*/
function Requester() {}
/**
* Send a request.
* @param {requestCallback} cb - The callback that handles the response.
*/
Requester.prototype.send = function(cb) {
// code
};
/**
* This callback is displayed as a global member.
* @callback requestCallback
* @param {number} responseCode
* @param {string} responseMessage
*/
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http://usejsdoc.org/tags-callback.html