ix/src/iterable/isempty.ts

The Interactive Extensions for JavaScript

/**
 * Determines whether the given async-iterable is empty.
 *
 * @template T The type of elements in the source sequence.
 * @param {Iterable<T>} source The source async-iterable to determine whether it is empty.
 * @returns {boolean} Returns true if the sequence is empty, otherwise false.
 */
export function isEmpty<T>(source: Iterable<T>): boolean {
  for (const _ of source) {
    return false;
  }
  return true;
}