Function getExperiments

third_party/subscriptions-project/swg.js:7486–7517

* Ensures that the experiments have been initialized and returns them. * @param {!Window} win * @return {!Object }

(win)

 * @return {!Object<string, boolean>}
 */
function getExperiments(win) {
  if (!experimentMap) {
    experimentMap = {};
    let combinedExperimentString = experimentsString;
    try {
      const query = parseQueryString(win.location.hash);
      const experimentStringFromHash = query['swg.experiments'];
      if (experimentStringFromHash) {
        combinedExperimentString += ',' + experimentStringFromHash;
      }
    } catch (e) {
      // Ignore: experiment parsing cannot block runtime.
      ErrorUtils.throwAsync(e);
    }

    // Format:
    // - experimentString = (experimentSpec,)*
    for (let experimentString of combinedExperimentString.split(',')) {
      experimentString = experimentString.trim();
      if (!experimentString) {
        continue;
      }
      try {
        parseSetExperiment(win, experimentMap, experimentString);
      } catch (e) {
        // Ignore: experiment parsing cannot block runtime.
        ErrorUtils.throwAsync(e);
      }
    }
  }
  return experimentMap;
}

/**
 * @param {!Window} win