@testim/testim-cli/rx/src/core/linq/observable/isempty.js

Command line interface for running Testing on you CI

  /**
   * Determines whether an observable sequence is empty.
   * @returns {Observable} An observable sequence containing a single element determining whether the source sequence is empty.
   */
  observableProto.isEmpty = function () {
    return this.any().map(not);
  };