用于 Adobe® Flash® Platform 的 ActionScript® 3.0 参考
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过滤条件: AIR 30.0 和更早版本, Flash Player 30.0 和更早版本, Flash Lite 4
Flex 4.6 和更早版本, Flash Pro CS6 和更早版本
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mx.utils 

ObjectUtil  - AS3 Flex

x

顶级
adobe.utils
air.desktop
air.net
air.update
air.update.events
coldfusion.air
coldfusion.air.errors
coldfusion.air.events
coldfusion.service
coldfusion.service.events
coldfusion.service.mxml
com.adobe.acm.solutions.authoring.domain.extensions
com.adobe.acm.solutions.ccr.domain.extensions
com.adobe.consulting.pst.vo
com.adobe.dct.component
com.adobe.dct.component.datadictionary
com.adobe.dct.component.datadictionaryElement
com.adobe.dct.component.dataElementsPanel
com.adobe.dct.component.toolbars
com.adobe.dct.event
com.adobe.dct.exp
com.adobe.dct.model
com.adobe.dct.service
com.adobe.dct.service.provider
com.adobe.dct.transfer
com.adobe.dct.util
com.adobe.dct.view
com.adobe.ep.taskmanagement.domain
com.adobe.ep.taskmanagement.event
com.adobe.ep.taskmanagement.filter
com.adobe.ep.taskmanagement.services
com.adobe.ep.taskmanagement.util
com.adobe.ep.ux.attachmentlist.component
com.adobe.ep.ux.attachmentlist.domain
com.adobe.ep.ux.attachmentlist.domain.events
com.adobe.ep.ux.attachmentlist.domain.renderers
com.adobe.ep.ux.attachmentlist.skin
com.adobe.ep.ux.attachmentlist.skin.renderers
com.adobe.ep.ux.content.event
com.adobe.ep.ux.content.factory
com.adobe.ep.ux.content.handlers
com.adobe.ep.ux.content.managers
com.adobe.ep.ux.content.model.asset
com.adobe.ep.ux.content.model.preview
com.adobe.ep.ux.content.model.relation
com.adobe.ep.ux.content.model.search
com.adobe.ep.ux.content.model.toolbar
com.adobe.ep.ux.content.search
com.adobe.ep.ux.content.services
com.adobe.ep.ux.content.services.load
com.adobe.ep.ux.content.services.permissions
com.adobe.ep.ux.content.services.preview
com.adobe.ep.ux.content.services.providers
com.adobe.ep.ux.content.services.query
com.adobe.ep.ux.content.services.relationships
com.adobe.ep.ux.content.services.search.lccontent
com.adobe.ep.ux.content.services.version
com.adobe.ep.ux.content.view
com.adobe.ep.ux.content.view.components.activate
com.adobe.ep.ux.content.view.components.grid
com.adobe.ep.ux.content.view.components.grid.hover
com.adobe.ep.ux.content.view.components.grid.hover.component
com.adobe.ep.ux.content.view.components.grid.renderers
com.adobe.ep.ux.content.view.components.relationships
com.adobe.ep.ux.content.view.components.review
com.adobe.ep.ux.content.view.components.search.renderers
com.adobe.ep.ux.content.view.components.searchpod
com.adobe.ep.ux.content.view.components.toolbar
com.adobe.ep.ux.content.view.components.toolbar.controlRenderers
com.adobe.ep.ux.content.view.components.version
com.adobe.ep.ux.documentsubmit.component
com.adobe.ep.ux.documentsubmit.domain
com.adobe.ep.ux.documentsubmit.skin
com.adobe.ep.ux.taskaction.component
com.adobe.ep.ux.taskaction.domain
com.adobe.ep.ux.taskaction.domain.events
com.adobe.ep.ux.taskaction.skin
com.adobe.ep.ux.taskdetails.component
com.adobe.ep.ux.taskdetails.domain
com.adobe.ep.ux.taskdetails.skin
com.adobe.ep.ux.tasklist.component
com.adobe.ep.ux.tasklist.domain
com.adobe.ep.ux.tasklist.skin
com.adobe.ep.ux.webdocumentviewer.domain
com.adobe.exm.expression
com.adobe.exm.expression.error
com.adobe.exm.expression.event
com.adobe.exm.expression.impl
com.adobe.fiber.runtime.lib
com.adobe.fiber.services
com.adobe.fiber.services.wrapper
com.adobe.fiber.styles
com.adobe.fiber.util
com.adobe.fiber.valueobjects
com.adobe.gravity.binding
com.adobe.gravity.context
com.adobe.gravity.flex.bundleloader
com.adobe.gravity.flex.progress
com.adobe.gravity.flex.serviceloader
com.adobe.gravity.framework
com.adobe.gravity.init
com.adobe.gravity.service.bundleloader
com.adobe.gravity.service.logging
com.adobe.gravity.service.manifest
com.adobe.gravity.service.progress
com.adobe.gravity.tracker
com.adobe.gravity.ui
com.adobe.gravity.utility
com.adobe.gravity.utility.async
com.adobe.gravity.utility.error
com.adobe.gravity.utility.events
com.adobe.gravity.utility.factory
com.adobe.gravity.utility.flex.async
com.adobe.gravity.utility.logging
com.adobe.gravity.utility.message
com.adobe.gravity.utility.sequence
com.adobe.gravity.utility.url
com.adobe.guides.control
com.adobe.guides.domain
com.adobe.guides.i18n
com.adobe.guides.spark.components.skins
com.adobe.guides.spark.components.skins.mx
com.adobe.guides.spark.headers.components
com.adobe.guides.spark.headers.skins
com.adobe.guides.spark.layouts.components
com.adobe.guides.spark.layouts.skins
com.adobe.guides.spark.navigators.components
com.adobe.guides.spark.navigators.renderers
com.adobe.guides.spark.navigators.skins
com.adobe.guides.spark.util
com.adobe.guides.spark.wrappers.components
com.adobe.guides.spark.wrappers.skins
com.adobe.guides.submit
com.adobe.icc.dc.domain
com.adobe.icc.dc.domain.factory
com.adobe.icc.editors.events
com.adobe.icc.editors.handlers
com.adobe.icc.editors.managers
com.adobe.icc.editors.model
com.adobe.icc.editors.model.config
com.adobe.icc.editors.model.el
com.adobe.icc.editors.model.el.operands
com.adobe.icc.editors.model.el.operators
com.adobe.icc.enum
com.adobe.icc.external.dc
com.adobe.icc.obj
com.adobe.icc.services
com.adobe.icc.services.category
com.adobe.icc.services.config
com.adobe.icc.services.download
com.adobe.icc.services.export
com.adobe.icc.services.external
com.adobe.icc.services.formbridge
com.adobe.icc.services.fragmentlayout
com.adobe.icc.services.layout
com.adobe.icc.services.letter
com.adobe.icc.services.locator
com.adobe.icc.services.module
com.adobe.icc.services.render
com.adobe.icc.services.submit
com.adobe.icc.services.user
com.adobe.icc.token
com.adobe.icc.vo
com.adobe.icc.vo.render
com.adobe.icomm.assetplacement.controller
com.adobe.icomm.assetplacement.controller.utils
com.adobe.icomm.assetplacement.data
com.adobe.icomm.assetplacement.model
com.adobe.livecycle.assetmanager.client
com.adobe.livecycle.assetmanager.client.event
com.adobe.livecycle.assetmanager.client.handler
com.adobe.livecycle.assetmanager.client.managers
com.adobe.livecycle.assetmanager.client.model
com.adobe.livecycle.assetmanager.client.model.cms
com.adobe.livecycle.assetmanager.client.service
com.adobe.livecycle.assetmanager.client.service.search
com.adobe.livecycle.assetmanager.client.service.search.cms
com.adobe.livecycle.assetmanager.client.utils
com.adobe.livecycle.content
com.adobe.livecycle.rca.model
com.adobe.livecycle.rca.model.constant
com.adobe.livecycle.rca.model.document
com.adobe.livecycle.rca.model.participant
com.adobe.livecycle.rca.model.reminder
com.adobe.livecycle.rca.model.stage
com.adobe.livecycle.rca.service
com.adobe.livecycle.rca.service.core
com.adobe.livecycle.rca.service.core.delegate
com.adobe.livecycle.rca.service.process
com.adobe.livecycle.rca.service.process.delegate
com.adobe.livecycle.rca.token
com.adobe.livecycle.ria.security.api
com.adobe.livecycle.ria.security.service
com.adobe.mosaic.layouts
com.adobe.mosaic.layouts.dragAndDrop
com.adobe.mosaic.layouts.interfaces
com.adobe.mosaic.mxml
com.adobe.mosaic.om.constants
com.adobe.mosaic.om.events
com.adobe.mosaic.om.impl
com.adobe.mosaic.om.interfaces
com.adobe.mosaic.skinning
com.adobe.mosaic.sparklib.editors
com.adobe.mosaic.sparklib.optionMenu
com.adobe.mosaic.sparklib.scrollableMenu
com.adobe.mosaic.sparklib.scrollableMenu.skins
com.adobe.mosaic.sparklib.tabLayout
com.adobe.mosaic.sparklib.tabLayout.events
com.adobe.mosaic.sparklib.tabLayout.layouts
com.adobe.mosaic.sparklib.tabLayout.skins
com.adobe.mosaic.sparklib.text
com.adobe.mosaic.sparklib.util
com.adobe.solutions.acm.authoring.presentation
com.adobe.solutions.acm.authoring.presentation.actionbar
com.adobe.solutions.acm.authoring.presentation.common
com.adobe.solutions.acm.authoring.presentation.events
com.adobe.solutions.acm.authoring.presentation.fragment
com.adobe.solutions.acm.authoring.presentation.letter
com.adobe.solutions.acm.authoring.presentation.letter.data
com.adobe.solutions.acm.authoring.presentation.preview
com.adobe.solutions.acm.authoring.presentation.rte
com.adobe.solutions.acm.ccr.presentation
com.adobe.solutions.acm.ccr.presentation.contentcapture
com.adobe.solutions.acm.ccr.presentation.contentcapture.events
com.adobe.solutions.acm.ccr.presentation.contentcapture.preview
com.adobe.solutions.acm.ccr.presentation.datacapture
com.adobe.solutions.acm.ccr.presentation.datacapture.renderers
com.adobe.solutions.acm.ccr.presentation.pdf
com.adobe.solutions.exm
com.adobe.solutions.exm.authoring
com.adobe.solutions.exm.authoring.components.controls
com.adobe.solutions.exm.authoring.components.toolbars
com.adobe.solutions.exm.authoring.domain
com.adobe.solutions.exm.authoring.domain.expression
com.adobe.solutions.exm.authoring.domain.impl
com.adobe.solutions.exm.authoring.domain.method
com.adobe.solutions.exm.authoring.domain.variable
com.adobe.solutions.exm.authoring.enum
com.adobe.solutions.exm.authoring.events
com.adobe.solutions.exm.authoring.model
com.adobe.solutions.exm.authoring.renderer
com.adobe.solutions.exm.authoring.view
com.adobe.solutions.exm.expression
com.adobe.solutions.exm.impl
com.adobe.solutions.exm.impl.method
com.adobe.solutions.exm.method
com.adobe.solutions.exm.mock
com.adobe.solutions.exm.mock.method
com.adobe.solutions.exm.runtime
com.adobe.solutions.exm.runtime.impl
com.adobe.solutions.exm.variable
com.adobe.solutions.prm.constant
com.adobe.solutions.prm.domain
com.adobe.solutions.prm.domain.factory
com.adobe.solutions.prm.domain.impl
com.adobe.solutions.prm.domain.manager
com.adobe.solutions.prm.presentation.asset
com.adobe.solutions.prm.presentation.constant
com.adobe.solutions.prm.presentation.document
com.adobe.solutions.prm.presentation.event
com.adobe.solutions.prm.presentation.file
com.adobe.solutions.prm.presentation.project
com.adobe.solutions.prm.presentation.team
com.adobe.solutions.prm.presentation.util
com.adobe.solutions.prm.service
com.adobe.solutions.prm.services.impl
com.adobe.solutions.prm.vo
com.adobe.solutions.rca.constant
com.adobe.solutions.rca.domain
com.adobe.solutions.rca.domain.common
com.adobe.solutions.rca.domain.factory
com.adobe.solutions.rca.domain.impl
com.adobe.solutions.rca.domain.impl.manager
com.adobe.solutions.rca.domain.manager
com.adobe.solutions.rca.presentation
com.adobe.solutions.rca.presentation.comment
com.adobe.solutions.rca.presentation.constant
com.adobe.solutions.rca.presentation.event
com.adobe.solutions.rca.presentation.gantt
com.adobe.solutions.rca.presentation.gantt.ruler
com.adobe.solutions.rca.presentation.template
com.adobe.solutions.rca.presentation.template.audit
com.adobe.solutions.rca.presentation.template.definition
com.adobe.solutions.rca.presentation.template.documents
com.adobe.solutions.rca.presentation.template.stages
com.adobe.solutions.rca.presentation.util
com.adobe.solutions.rca.service
com.adobe.solutions.rca.services.impl
com.adobe.solutions.rca.vo
com.adobe.solutions.rca.vo.um
com.adobe.viewsource
fl.accessibility
fl.containers
fl.controls
fl.controls.dataGridClasses
fl.controls.listClasses
fl.controls.progressBarClasses
fl.core
fl.data
fl.display
fl.events
fl.ik
fl.lang
fl.livepreview
fl.managers
fl.motion
fl.motion.easing
fl.rsl
fl.text
fl.transitions
fl.transitions.easing
fl.video
flash.accessibility
flash.concurrent
flash.crypto
flash.data
flash.desktop
flash.display
flash.display3D
flash.display3D.textures
flash.errors
flash.events
flash.external
flash.filesystem
flash.filters
flash.geom
flash.globalization
flash.html
flash.media
flash.net
flash.net.dns
flash.net.drm
flash.notifications
flash.permissions
flash.printing
flash.profiler
flash.sampler
flash.security
flash.sensors
flash.system
flash.text
flash.text.engine
flash.text.ime
flash.ui
flash.utils
flash.xml
flashx.textLayout
flashx.textLayout.compose
flashx.textLayout.container
flashx.textLayout.conversion
flashx.textLayout.edit
flashx.textLayout.elements
flashx.textLayout.events
flashx.textLayout.factory
flashx.textLayout.formats
flashx.textLayout.operations
flashx.textLayout.utils
flashx.undo
ga.controls
ga.layouts
ga.model
ga.uiComponents
ga.util
ga.views
ga.wrappers
lc.foundation
lc.foundation.domain
lc.foundation.events
lc.foundation.ui
lc.foundation.util
lc.preloader
lc.procmgmt
lc.procmgmt.commands
lc.procmgmt.domain
lc.procmgmt.events
lc.procmgmt.formbridge
lc.procmgmt.impl
lc.procmgmt.ui.attachments
lc.procmgmt.ui.controls
lc.procmgmt.ui.controls.card
lc.procmgmt.ui.controls.renderer
lc.procmgmt.ui.help
lc.procmgmt.ui.layout
lc.procmgmt.ui.presentationmodel
lc.procmgmt.ui.process
lc.procmgmt.ui.search
lc.procmgmt.ui.startpoint
lc.procmgmt.ui.task
lc.procmgmt.ui.task.form
lc.procmgmt.ui.task.form.commands
lc.procmgmt.ui.tracking
mx.accessibility
mx.automation
mx.automation.air
mx.automation.delegates
mx.automation.delegates.advancedDataGrid
mx.automation.delegates.charts
mx.automation.delegates.containers
mx.automation.delegates.controls
mx.automation.delegates.controls.dataGridClasses
mx.automation.delegates.controls.fileSystemClasses
mx.automation.delegates.core
mx.automation.delegates.flashflexkit
mx.automation.events
mx.binding
mx.binding.utils
mx.charts
mx.charts.chartClasses
mx.charts.effects
mx.charts.effects.effectClasses
mx.charts.events
mx.charts.renderers
mx.charts.series
mx.charts.series.items
mx.charts.series.renderData
mx.charts.styles
mx.collections
mx.collections.errors
mx.containers
mx.containers.accordionClasses
mx.containers.dividedBoxClasses
mx.containers.errors
mx.containers.utilityClasses
mx.controls
mx.controls.advancedDataGridClasses
mx.controls.dataGridClasses
mx.controls.listClasses
mx.controls.menuClasses
mx.controls.olapDataGridClasses
mx.controls.scrollClasses
mx.controls.sliderClasses
mx.controls.textClasses
mx.controls.treeClasses
mx.controls.videoClasses
mx.core
mx.core.windowClasses
mx.data
mx.data.crypto
mx.data.errors
mx.data.events
mx.data.messages
mx.data.mxml
mx.data.offline.errors
mx.data.utils
mx.effects
mx.effects.easing
mx.effects.effectClasses
mx.events
mx.filters
mx.flash
mx.formatters
mx.geom
mx.graphics
mx.graphics.codec
mx.graphics.shaderClasses
mx.logging
mx.logging.errors
mx.logging.targets
mx.managers
mx.messaging
mx.messaging.channels
mx.messaging.config
mx.messaging.errors
mx.messaging.events
mx.messaging.management
mx.messaging.messages
mx.modules
mx.netmon
mx.olap
mx.olap.aggregators
mx.preloaders
mx.printing
mx.resources
mx.rpc
mx.rpc.events
mx.rpc.http
mx.rpc.http.mxml
mx.rpc.livecycle
mx.rpc.mxml
mx.rpc.remoting
mx.rpc.remoting.mxml
mx.rpc.soap
mx.rpc.soap.mxml
mx.rpc.wsdl
mx.rpc.xml
mx.skins
mx.skins.halo
mx.skins.spark
mx.skins.wireframe
mx.skins.wireframe.windowChrome
mx.states
mx.styles
mx.utils
mx.validators
org.osmf.containers
org.osmf.display
org.osmf.elements
org.osmf.events
org.osmf.layout
org.osmf.logging
org.osmf.media
org.osmf.metadata
org.osmf.net
org.osmf.net.dvr
org.osmf.net.httpstreaming
org.osmf.net.metrics
org.osmf.net.qos
org.osmf.net.rtmpstreaming
org.osmf.net.rules
org.osmf.traits
org.osmf.utils
spark.accessibility
spark.automation.delegates
spark.automation.delegates.components
spark.automation.delegates.components.gridClasses
spark.automation.delegates.components.mediaClasses
spark.automation.delegates.components.supportClasses
spark.automation.delegates.skins.spark
spark.automation.events
spark.collections
spark.components
spark.components.calendarClasses
spark.components.gridClasses
spark.components.mediaClasses
spark.components.supportClasses
spark.components.windowClasses
spark.core
spark.effects
spark.effects.animation
spark.effects.easing
spark.effects.interpolation
spark.effects.supportClasses
spark.events
spark.filters
spark.formatters
spark.formatters.supportClasses
spark.globalization
spark.globalization.supportClasses
spark.layouts
spark.layouts.supportClasses
spark.managers
spark.modules
spark.preloaders
spark.primitives
spark.primitives.supportClasses
spark.skins
spark.skins.mobile
spark.skins.mobile.supportClasses
spark.skins.spark
spark.skins.spark.mediaClasses.fullScreen
spark.skins.spark.mediaClasses.normal
spark.skins.spark.windowChrome
spark.skins.wireframe
spark.skins.wireframe.mediaClasses
spark.skins.wireframe.mediaClasses.fullScreen
spark.transitions
spark.utils
spark.validators
spark.validators.supportClasses
xd.core.axm.enterprise.view.components
xd.core.axm.enterprise.view.skins
xd.core.axm.view.components
xd.core.axm.view.components.support

语言元素

全局常量
全局函数
运算符
语句、关键字和指令
特殊类型

附录

新增内容
编译器错误
编译器警告
运行时错误
迁移到 ActionScript 3
支持的字符集
仅适用于 MXML 的标签
Motion XML 元素
Timed Text 标记
不推荐使用的元素的列表
AccessibilityImplementation 常量
如何使用 ActionScript 示例
法律声明
mx.utils
public class ObjectUtil
继承ObjectUtil Inheritance Object

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

ObjectUtil 类是一个全静态类,其方法用于处理 Flex 内的对象。不创建 ObjectUtil 的实例;只是调用如 ObjectUtil.isSimple() 之类的静态方法。



公共属性
 属性由以下参数定义
 Inheritedconstructor : Object
对类对象或给定对象实例的构造函数的引用。
Object
公共方法
 方法由以下参数定义
  
[静态] 克隆指定对象,并返回对该克隆的引用。
ObjectUtil
  
compare(a:Object, b:Object, depth:int = -1):int
[静态] 比较这些对象并返回一个整数值,指示第一项小于、大于还是等于第二项。
ObjectUtil
  
[静态] 复制指定对象并返回对该副本的引用。
ObjectUtil
  
[静态] 比较两个 Date 对象并返回一个整数值,指示第一个 Date 对象是在第二个 Date 对象之前、相等还是之后。
ObjectUtil
  
getClassInfo(obj:Object, excludes:Array = null, options:Object = null):Object
[静态] 返回指定对象的关于该类以及该类的属性的信息。
ObjectUtil
  
hasMetadata(obj:Object, propName:String, metadataName:String, excludes:Array = null, options:Object = null):Boolean
[静态] 使用 getClassInfo 并检查元数据信息以确定给定对象上的属性是否具有指定的元数据。
ObjectUtil
 Inherited
表示对象是否已经定义了指定的属性。
Object
  
[静态] 如果对象是一个动态类的实例,则返回 true。
ObjectUtil
 Inherited
表示 Object 类的实例是否在指定为参数的对象的原型链中。
Object
  
[静态] 如果指定的对象引用为简单数据类型,则返回 true。
ObjectUtil
  
[静态] 比较两个数值。
ObjectUtil
 Inherited
表示指定的属性是否存在、是否可枚举。
Object
 Inherited
设置循环操作动态属性的可用性。
Object
  
stringCompare(a:String, b:String, caseInsensitive:Boolean = false):int
[静态] 比较两个字符串值。
ObjectUtil
 Inherited
返回此对象的字符串表示形式,其格式设置遵守区域设置特定的约定。
Object
  
toString(value:Object, namespaceURIs:Array = null, exclude:Array = null):String
[静态] 将指定的对象代码美化为一个字符串。
ObjectUtil
 Inherited
返回指定对象的原始值。
Object
方法详细信息

clone

()方法
public static function clone(value:Object):Object

语言版本: ActionScript 3.0
产品版本: Flex 4
运行时版本: Flash Player 9, AIR 1.1

克隆指定对象,并返回对该克隆的引用。该克隆使用本机序列化技术生成。这意味着在克隆过程中将遵循该自定义的序列化。clone() 与 copy() 的不同之处在于,每个对象实例的 uid 属性会被保留。

该方法用于克隆数据对象,如集合的元素。不能用于克隆 UIComponent 对象,如 TextInput 控件。如果希望克隆特定的 UIComponent 对象,则可以创建该组件的一个子类,并实现 clone() 方法。

参数

value:Object — 应克隆的对象。

返回
Object — 指定对象的克隆。

compare

()方法 
public static function compare(a:Object, b:Object, depth:int = -1):int

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

比较这些对象并返回一个整数值,指示第一项小于、大于还是等于第二项。该方法将以递归方式比较嵌套对象上的属性,并在发现非零结果后立即返回。默认情况下,该方法将递归到任何属性的最深层。要更改比较的深度,可为 depth 参数指定非负值。

参数

a:Object — object。
 
b:Object — object。
 
depth:int (default = -1) — 指示在进行比较时应递归的层数。对于仅比较每个属性的原始表示形式的浅层比较,将该值设为 0。例如:
      var a:Object = {name:"Bob", info:[1,2,3]};
      var b:Object = {name:"Alice", info:[5,6,7]};
      var c:int = ObjectUtil.compare(a, b, 0);

在上例中, 当进行比较时,ab 的复杂属性将通过调用 toString() 被扁平化。在本例中,当执行比较时,info 属性将被转换为一个字符串。

返回
int — 如果 a 和 b 为 null、NaN 或相等,则返回 0。如果 a 为 null 或大于 b,则返回 1。如果 b 为 null 或大于 a,则返回 -1。

copy

()方法 
public static function copy(value:Object):Object

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

复制指定对象并返回对该副本的引用。该副本使用本机序列化技术生成。这意味着在复制过程中将遵循该自定义的序列化。

该方法设计用于复制数据对象,如集合的元素。不能用于复制 UIComponent 对象,如 TextInput 控件。如果要创建特定 UIComponent 对象的副本,可创建该组件的子类并实现 clone() 方法,或执行复制的其他方法。

参数

value:Object — 应复制的对象。

返回
Object — 指定对象的副本。

dateCompare

()方法 
public static function dateCompare(a:Date, b:Date):int

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

比较两个 Date 对象并返回一个整数值,指示第一个 Date 对象是在第二个 Date 对象之前、相等还是之后。

参数

a:Date — Date 对象。
 
b:Date — Date 对象。

返回
int — 如果 ab 相等(或者同为 null)则为 0;如果 ab 之前(或者 bnull)则为 -1;如果 ab 之后(或者 anull)则为 1。

getClassInfo

()方法 
public static function getClassInfo(obj:Object, excludes:Array = null, options:Object = null):Object

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

返回指定对象的关于该类以及该类的属性的信息。

参数

obj:Object — 要检查的 Object。
 
excludes:Array (default = null) — 指定应从返回结果中排除的属性名称的字符串数组。例如,可以指定 Event 对象的 ["currentTarget", "target"],因为这些属性可导致返回结果变大。
 
options:Object (default = null) — 该对象包含一个或多个属性,控制由该方法返回的信息。这些属性包括:
  • includeReadOnly:如果为 false,则排除只读对象属性。默认值为 true
  • includeTransient:如果为 false,则排除具有 [Transient] 元数据的对象属性和变量。默认值为 true
  • uris:输出中要包括的所有命名空间的字符串数组。允许使用“*”通配符。默认情况下为 null,表示没有应包括的命名空间。例如,可指定 ["mx_internal", "mx_object"]["*"]

返回
Object — 对象包含下列属性:
  • name:包含类的名称的字符串。
  • properties:所指定对象的属性名称的经过排序的列表,或对原始键的引用(如果指定的对象为 Dictionary)。各个数组元素都是 QName 实例,这种实例同时包含属性的本地名称以及 URI。

hasMetadata

()方法 
public static function hasMetadata(obj:Object, propName:String, metadataName:String, excludes:Array = null, options:Object = null):Boolean

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

使用 getClassInfo 并检查元数据信息以确定给定对象上的属性是否具有指定的元数据。

参数

obj:Object — 包含该属性的对象。
 
propName:String — 要检查元数据的属性。
 
metadataName:String — 要在属性上检查的元数据的名称。
 
excludes:Array (default = null) — 在生成类信息时是否需排除一些属性。(可选)
 
options:Object (default = null) — 在生成类信息时是否需更改一些选项标志。(可选)

返回
Boolean — 如果属性具有指定的元数据,则为 true。

isDynamicObject

()方法 
public static function isDynamicObject(obj:Object):Boolean

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

如果对象是一个动态类的实例,则返回 true

参数

obj:Object — 对象。

返回
Boolean — 如果对象是一个动态类的实例,则为 true

isSimple

()方法 
public static function isSimple(value:Object):Boolean

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

如果指定的对象引用为简单数据类型,则返回 true。简单数据类型包括以下类型:

  • String
  • Number
  • uint
  • int
  • Boolean
  • Date
  • Array

参数

value:Object — 检查的对象。

返回
Boolean — 如果指定的对象为以上类型之一,则为 true;否则为 false

numericCompare

()方法 
public static function numericCompare(a:Number, b:Number):int

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

比较两个数值。

参数

a:Number — 第一个数字。
 
b:Number — 第二个数字。

返回
int — 如果两者都为 NaN,则为 0。如果只有 a 为 NaN,则为 1。如果只有 b 为 NaN,则为 -1。如果 a 小于 b,则为 -1。如果 a 大于 b,则为 1。

stringCompare

()方法 
public static function stringCompare(a:String, b:String, caseInsensitive:Boolean = false):int

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

比较两个字符串值。

参数

a:String — 第一个字符串值。
 
b:String — 第二个字符串值。
 
caseInsensitive:Boolean (default = false) — 指定执行不区分大小写的比较,为 true;否则为 false

返回
int — 如果两个字符串都为 null,则为 0。如果只有 a 为 null,则为 1。如果只有 b 为 null,则为 -1。如果 ab 之前,则为 -1。如果 ba 之前,则为 1。

toString

()方法 
public static function toString(value:Object, namespaceURIs:Array = null, exclude:Array = null):String

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

将指定的对象代码美化为一个字符串。所有属性将按字母排序。打印过程中将为每个对象分配一个 ID;该值将在对象类型标记的旁边显示,前面带有“#”号,例如:

      (mx.messaging.messages::AsyncMessage)#2.

此 ID 用于指示 circular 引用发生的时间。Class 类型的对象属性将仅显示为分配的类型。例如如下所示的自定义的定义:

        public class MyCustomClass {
          public var clazz:Class;
        }

clazz 属性分配Date 的显示如下:

       (somepackage::MyCustomClass)#0
          clazz = (Date)

参数

value:Object — 要美化打印的对象。
 
namespaceURIs:Array (default = null) — 输出中要包括的属性的命名空间 URI 数组。默认情况下,输出中仅包括公共命名空间中的属性。要获取不考虑命名空间的所有属性,传递仅有单个元素 "*" 的数组。
 
exclude:Array (default = null) — 应从输出中排除的属性名称的数组。使用它从格式化的字符串中删除数据。

返回
String — 包含指定对象格式化版本的字符串。

示例
如何使用本示例
      // example 1
      var obj:AsyncMessage = new AsyncMessage();
      obj.body = [];
      obj.body.push(new AsyncMessage());
      obj.headers["1"] = { name: "myName", num: 15.3};
      obj.headers["2"] = { name: "myName", num: 15.3};
      obj.headers["10"] = { name: "myName", num: 15.3};
      obj.headers["11"] = { name: "myName", num: 15.3};
      trace(ObjectUtil.toString(obj));
     
      // will output to flashlog.txt
      (mx.messaging.messages::AsyncMessage)#0
        body = (Array)#1
          [0] (mx.messaging.messages::AsyncMessage)#2
            body = (Object)#3
            clientId = (Null)
            correlationId = ""
            destination = ""
            headers = (Object)#4
            messageId = "378CE96A-68DB-BC1B-BCF7FFFFFFFFB525"
            sequenceId = (Null)
            sequencePosition = 0
            sequenceSize = 0
            timeToLive = 0
            timestamp = 0
        clientId = (Null)
        correlationId = ""
        destination = ""
        headers = (Object)#5
          1 = (Object)#6
            name = "myName"
            num = 15.3
          10 = (Object)#7
            name = "myName"
            num = 15.3
          11 = (Object)#8
            name = "myName"
            num = 15.3
          2 = (Object)#9
            name = "myName"
            num = 15.3
        messageId = "1D3E6E96-AC2D-BD11-6A39FFFFFFFF517E"
        sequenceId = (Null)
        sequencePosition = 0
        sequenceSize = 0
        timeToLive = 0
        timestamp = 0
     
      // example 2 with circular references
      obj = {};
      obj.prop1 = new Date();
      obj.prop2 = [];
      obj.prop2.push(15.2);
      obj.prop2.push("testing");
      obj.prop2.push(true);
      obj.prop3 = {};
      obj.prop3.circular = obj;
      obj.prop3.deeper = new ErrorMessage();
      obj.prop3.deeper.rootCause = obj.prop3.deeper;
      obj.prop3.deeper2 = {};
      obj.prop3.deeper2.deeperStill = {};
      obj.prop3.deeper2.deeperStill.yetDeeper = obj;
      trace(ObjectUtil.toString(obj));
     
      // will output to flashlog.txt
      (Object)#0
        prop1 = Tue Apr 26 13:59:17 GMT-0700 2005
        prop2 = (Array)#1
          [0] 15.2
          [1] "testing"
          [2] true
        prop3 = (Object)#2
          circular = (Object)#0
          deeper = (mx.messaging.messages::ErrorMessage)#3
            body = (Object)#4
            clientId = (Null)
            code = (Null)
            correlationId = ""
            destination = ""
            details = (Null)
            headers = (Object)#5
            level = (Null)
            message = (Null)
            messageId = "14039376-2BBA-0D0E-22A3FFFFFFFF140A"
            rootCause = (mx.messaging.messages::ErrorMessage)#3
            sequenceId = (Null)
            sequencePosition = 0
            sequenceSize = 0
            timeToLive = 0
            timestamp = 0
          deeper2 = (Object)#6
            deeperStill = (Object)#7
              yetDeeper = (Object)#0
     
     // example 3 with Dictionary
     var point:Point = new Point(100, 100);
     var point2:Point = new Point(100, 100);
     var obj:Dictionary = new Dictionary();
     obj[point] = "point";
     obj[point2] = "point2";
     obj["1"] = { name: "one", num: 1};
     obj["two"] = { name: "2", num: 2};
     obj[3] = 3;
     trace(ObjectUtil.toString(obj));
     
     // will output to flashlog.txt
     (flash.utils::Dictionary)#0
       {(flash.geom::Point)#1
         length = 141.4213562373095
         x = 100
         y = 100} = "point2"
       {(flash.geom::Point)#2
         length = 141.4213562373095
         x = 100
         y = 100} = "point"
       {1} = (Object)#3
         name = "one"
         num = 1
       {3} = 3
       {"two"} = (Object)#4
         name = "2"
         num = 2
     
     




[ X ]为什么显示为英语?
《ActionScript 3.0 参考》中的内容以英语显示

《ActionScript 3.0 参考》中的部分内容未翻译成所有语言。当某个语言元素未翻译时,将显示为英语。例如,ga.controls.HelpBox 类未翻译成任何语言。因此在简体中文版的参考中,ga.controls.HelpBox 类显示为英语。