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This article mainly introduces how to use callbacks.empty () to clear a callback list, the article is very detailed, has a certain reference value, interested friends must read it!

Callbacks.empty ()

Description: removes all callbacks from the list.

Added version: 1.7callbacks.empty ()

This method does not accept any parameters

This method returns the callback object (this) that binds it.

Example

Clear a list of callbacks with callbacks.empty ():

/ / a sample logging function to be added to a callbacks list

Var foo = function (value1, value2) {

Console.log ("foo:" + value1 + "," + value2)

}

/ / another function to also be added to the list

Var bar = function (value1, value2) {

Console.log ("bar:" + value1 + "," + value2)

}

Var callbacks = $.Callrooms ()

/ / add the two functions

Callbacks.add (foo)

Callbacks.add (bar)

/ / empty the callbacks list

Callbacks.empty ()

/ / check to ensure all callbacks have been removed

Console.log (callbacks.has (foo))

/ / false

Console.log (callbacks.has (bar))

/ / false

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