initial commit: scaffolding

1 files changed, 19 insertions, 0 deletions

diff --git a/node_modules/rxjs/src/internal/util/args.ts b/node_modules/rxjs/src/internal/util/args.ts
new file mode 100644
index 0000000..0ce104b
--- /dev/null
+++ b/node_modules/rxjs/src/internal/util/args.ts
@@ -0,0 +1,19 @@
+import { SchedulerLike } from '../types';
+import { isFunction } from './isFunction';
+import { isScheduler } from './isScheduler';
+
+function last<T>(arr: T[]): T | undefined {
+  return arr[arr.length - 1];
+}
+
+export function popResultSelector(args: any[]): ((...args: unknown[]) => unknown) | undefined {
+  return isFunction(last(args)) ? args.pop() : undefined;
+}
+
+export function popScheduler(args: any[]): SchedulerLike | undefined {
+  return isScheduler(last(args)) ? args.pop() : undefined;
+}
+
+export function popNumber(args: any[], defaultValue: number): number {
+  return typeof last(args) === 'number' ? args.pop()! : defaultValue;
+}