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# Class Ext.util.DelayedTask

Package: | Ext.util
Defined In: | DelayedTask.js
Class: | DelayedTask
Extends: | Object

Provides a convenient method of performing setTimeout where a new timeout cancels the old timeout. An example would be performing validation on a keypress. You can use this class to buffer the keypress events for a certain number of milliseconds, and perform only if they stop for that amount of time.

## Public Properties

This class has no public properties.

## Public Methods

Method | Defined By
--- | ---
| DelayedTask( [`Function fn`], [`Object scope`], [`Array args`] ) The parameters to this constructor serve as defaults and are not required. The parameters to this constructor serve as defaults and are not required. Parameters: `fn` : Function (optional) The default function to timeout `scope` : Object (optional) The default scope of that timeout `args` : Array (optional) The default Array of arguments Returns: void | DelayedTask
| cancel() : void Cancel the last queued timeout Cancel the last queued timeout Parameters: None. Returns: void | DelayedTask
| delay( `Number delay`, [`Function newFn`], [`Object newScope`], [`Array newArgs`] ) : void Cancels any pending timeout and queues a new one Cancels any pending timeout and queues a new one Parameters: `delay` : Number The milliseconds to delay `newFn` : Function (optional) Overrides function passed to constructor `newScope` : Object (optional) Overrides scope passed to constructor `newArgs` : Array (optional) Overrides args passed to constructor Returns: void | DelayedTask

## Public Events

This class has no public events.