• 概要
@angular/core

IterableChangeRecord

interface
stable

Record representing the item change information.

API

    
      interface IterableChangeRecord<V> {  readonly currentIndex: number | null;  readonly previousIndex: number | null;  readonly item: V;  readonly trackById: any;}
    
    

currentIndex

number | null

Current index of the item in Iterable or null if removed.

previousIndex

number | null

Previous index of the item in Iterable or null if added.

item

V

The item.

trackById

any

Track by identity as computed by the TrackByFunction.

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