Stable Class
Class Overview
class QueryList {
changes : Observable<any>
length : number
first : T
last : T
map(fn: (item: T, index: number, array: T[]) => U) : U[]
filter(fn: (item: T, index: number, array: T[]) => boolean) : T[]
reduce(fn: (prevValue: U, curValue: T, curIndex: number, array: T[]) => U, init: U) : U
forEach(fn: (item: T, index: number, array: T[]) => void) : void
some(fn: (value: T, index: number, array: T[]) => boolean) : boolean
toArray() : T[]
toString() : string
reset(res: Array<T|any[]>) : void
notifyOnChanges() : void
setDirty()
dirty
}
Class Description
An unmodifiable list of items that Angular keeps up to date when the state of the application changes.
The type of object that Query and ViewQueryMetadata provide.
Implements an iterable interface, therefore it can be used in both ES6 javascript for (var i of items) loops as well as in Angular templates with *ngFor="let i of myList".
Changes can be observed by subscribing to the changes Observable.
NOTE: In the future this class will implement an Observable interface.
Example (live demo)
@Component({...})
class Container {
@ViewChildren(Item) items:QueryList<Item>;
}
Class Details
changes : Observable<any>
length : number
first : T
last : T
map(fn: (item: T, index: number, array: T[]) => U) : U[]
See Array.map
filter(fn: (item: T, index: number, array: T[]) => boolean) : T[]
See Array.filter
reduce(fn: (prevValue: U, curValue: T, curIndex: number, array: T[]) => U, init: U) : U
See Array.reduce
forEach(fn: (item: T, index: number, array: T[]) => void) : void
See Array.forEach
some(fn: (value: T, index: number, array: T[]) => boolean) : boolean
See Array.some
toArray() : T[]
toString() : string
reset(res: Array<T|any[]>) : void
notifyOnChanges() : void
setDirty()
internal
dirty
internal
exported from @angular/core/index, defined in @angular/core/src/linker/query_list.ts
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