Class Ext.util.DelayedTask

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

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.

属性 - 方法 - 事件

公共属性

此类没有公共属性。

公共方法

方法		定义对象
	DelayedTask([`Function fn`], [`Object scope`], [`Array args`])	DelayedTask
	The parameters to this constructor serve as defaults and are not required.	DelayedTask
	cancel() : void	DelayedTask
	Cancel the last queued timeout	DelayedTask
	delay(`Number delay`, [`Function newFn`], [`Object newScope`], [`Array newArgs`]) : void	DelayedTask
	Cancels any pending timeout and queues a new one	DelayedTask

公共事件

此类没有公共事件。

构造函数

DelayedTask

public function DelayedTask([Function fn], [Object scope], [Array args])

The parameters to this constructor serve as defaults and are not required.

参数：

fn : Function
（可选） The default function to timeout
scope : Object
（可选） The default scope of that timeout
args : Array
（可选） The default Array of arguments

方法详情

cancel

public function cancel()

Cancel the last queued timeout

参数：

无。

返回：

void

This method is defined by DelayedTask.

delay

public function delay(Number delay, [Function newFn], [Object newScope], [Array newArgs])

Cancels any pending timeout and queues a new one

参数：

delay : Number
The milliseconds to delay
newFn : Function
（可选） Overrides function passed to constructor
newScope : Object
（可选） Overrides scope passed to constructor
newArgs : Array
（可选） Overrides args passed to constructor

返回：

void

This method is defined by DelayedTask.