add Iterable.empty()

37402c18 · João Moreno · 6b3db5ba · 37402c18
隐藏空白更改
内联并排

Showing with 5 addition and 0 deletion

src/vs/base/common/iterator.ts src/vs/base/common/iterator.ts +5 -0

未找到文件。
--- a/src/vs/base/common/iterator.ts
+++ b/src/vs/base/common/iterator.ts
@@ -36,6 +36,11 @@ export interface NativeIterator<T> {

 export namespace Iterable {

+	const _empty: Iterable<any> = Object.freeze([]);
+	export function empty<T>(): Iterable<T> {
+		return _empty;
+	}
+
 	export function first<T>(iterable: Iterable<T>): T | undefined {
 		return iterable[Symbol.iterator]().next().value;
 	}