var _on = function()

in public/webpackShims/zeroclip/zero_clipboard.js [470:516]
47 lines of code
22 McCabe index (conditional complexity)

  var _on = function (eventType, listener) {
    var i, len, events, added = {};
    if (typeof eventType === "string" && eventType) {
      events = eventType.toLowerCase().split(/\s+/);
    } else if (typeof eventType === "object" && eventType && typeof listener === "undefined") {
      for (i in eventType) {
        if (_hasOwn.call(eventType, i) && typeof i === "string" && i && typeof eventType[i] === "function") {
          ZeroClipboard.on(i, eventType[i]);
        }
      }
    }
    if (events && events.length) {
      for (i = 0, len = events.length; i < len; i++) {
        eventType = events[i].replace(/^on/, "");
        added[eventType] = true;
        if (!_handlers[eventType]) {
          _handlers[eventType] = [];
        }
        _handlers[eventType].push(listener);
      }
      if (added.ready && _flashState.ready) {
        ZeroClipboard.emit({
          type: "ready"
        });
      }
      if (added.error) {
        for (i = 0, len = _flashStateErrorNames.length; i < len; i++) {
          if (_flashState[_flashStateErrorNames[i].replace(/^flash-/, "")] === true) {
            ZeroClipboard.emit({
              type: "error",
              name: _flashStateErrorNames[i]
            });
            break;
          }
        }
        if (_zcSwfVersion !== undefined && ZeroClipboard.version !== _zcSwfVersion) {
          ZeroClipboard.emit({
            type: "error",
            name: "version-mismatch",
            jsVersion: ZeroClipboard.version,
            swfVersion: _zcSwfVersion
          });
        }
      }
    }
    return ZeroClipboard;
  };