Class StyleObserver

constructor

• new StyleObserver(
      callback: StyleObserverCallback,
      options?: string | string[] | StyleObserverOptions,
  ): StyleObserver

  Parameters

  • callback: StyleObserverCallback
  • Optionaloptions: string | string[] | StyleObserverOptions

  Returns StyleObserver

callback

elementObservers

options

changed

• changed(records: Record[]): void

  Parameters

  • records: Record[]

  Returns void

observe

• observe(targets: Element | Element[], properties: string | string[]): void

  Observe one or more targets for changes to one or more CSS properties.

  Parameters

  • targets: Element | Element[]
  • properties: string | string[]

  Returns void
• observe(properties: string | string[], targets: Element | Element[]): void

  Observe one or more targets for changes to one or more CSS properties.

  Parameters

  • properties: string | string[]
  • targets: Element | Element[]

  Returns void
• observe(...propertiesOrTargets: string | Element | (string | Element)[]): void

  Observe one or more targets for changes to one or more CSS properties.

  Parameters

  • ...propertiesOrTargets: string | Element | (string | Element)[]

  Returns void

unobserve

• unobserve(targets: Element | Element[], properties: string | string[]): void

  Stop observing one or more targets for changes to one or more CSS properties.

  Parameters

  • targets: Element | Element[]
  • properties: string | string[]

  Returns void
• unobserve(properties: string | string[], targets: Element | Element[]): void

  Stop observing one or more targets for changes to one or more CSS properties.

  Parameters

  • properties: string | string[]
  • targets: Element | Element[]

  Returns void
• unobserve(...propertiesOrTargets: string | Element | (string | Element)[]): void

  Stop observing one or more targets for changes to one or more CSS properties.

  Parameters

  • ...propertiesOrTargets: string | Element | (string | Element)[]

  Returns void

updateTransition

• updateTransition(targets: Element | Element[]): void

  Update the transition for one or more targets.

  Parameters

  • targets: Element | Element[]

  Returns void