ReadOnlyObservableCollection.every - Andrei15193/react-model-view-viewmodel GitHub Wiki

Checks whether all elements in the collection satisfy a given condition.

public every<TContext = void>(
  predicate: (this: TContext, item: TItem, index: number, collection: this) => boolean,
  thisArg?: TContext
): boolean

Source reference: src/collections/observableCollections/ReadOnlyObservableCollection.ts:293.

• TContext - The context type in which the callback is executed.

  Default value: void.

• predicate: (this:TContext, item:TItem, index:number, collection:this) => boolean
  The callback performing the check for each item.

• thisArg: TContext
  A value to use as context when checking items.

Returns true if the provided predicate is true for all items; otherwise false.

• Array.every