IReadOnlyObservableCollection.some

API / IReadOnlyObservableCollection<TItem> / some method

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

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

Source reference: src/collections/observableCollections/IReadOnlyObservableCollection.ts:231.

Generic Parameters

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

Parameters

• 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: boolean

Returns true if the provided predicate is true for at least one item; otherwise false.

See also

• Array.some