How to use the global/window.videojs function in global

// Having issues with Flash reloading on certain page actions (hide/resize/fullscreen) in certain browsers
    // This allows resetting the playhead when we catch the reload
    if (options.startTime) {
      this.ready(function(){
        this.load();
        this.play();
        this.currentTime(options.startTime);
      }, true);
    }

    // Add global window functions that the swf expects
    // A 4.x workflow we weren't able to solve for in 5.0
    // because of the need to hard code these functions
    // into the swf for security reasons
    window.videojs = window.videojs || {};
    window.videojs.Flash = window.videojs.Flash || {};
    window.videojs.Flash.onReady = Flash.onReady;
    window.videojs.Flash.onEvent = Flash.onEvent;
    window.videojs.Flash.onError = Flash.onError;

    this.on('seeked', function() {
      this.lastSeekTarget_ = undefined;
    });
  }

// Having issues with Flash reloading on certain page actions
    // (hide/resize/fullscreen) in certain browsers
    // This allows resetting the playhead when we catch the reload
    if (options.startTime) {
      this.ready(function() {
        this.load();
        this.play();
        this.currentTime(options.startTime);
      }, true);
    }

    // Add global window functions that the swf expects
    // A 4.x workflow we weren't able to solve for in 5.0
    // because of the need to hard code these functions
    // into the swf for security reasons
    window.videojs = window.videojs || {};
    window.videojs.Flash = window.videojs.Flash || {};
    window.videojs.Flash.onReady = Flash.onReady;
    window.videojs.Flash.onEvent = Flash.onEvent;
    window.videojs.Flash.onError = Flash.onError;

    this.on('seeked', function() {
      this.lastSeekTarget_ = undefined;
    });

  }

// Having issues with Flash reloading on certain page actions (hide/resize/fullscreen) in certain browsers
    // This allows resetting the playhead when we catch the reload
    if (options.startTime) {
      this.ready(function() {
        this.load();
        this.play();
        this.currentTime(options.startTime);
      }, true);
    }

    // Add global window functions that the swf expects
    // A 4.x workflow we weren't able to solve for in 5.0
    // because of the need to hard code these functions
    // into the swf for security reasons
    window.videojs = window.videojs || {};
    window.videojs.Flash = window.videojs.Flash || {};
    window.videojs.Flash.onReady = Flash.onReady;
    window.videojs.Flash.onEvent = Flash.onEvent;
    window.videojs.Flash.onError = Flash.onError;

    this.on('seeked', function() {
      this.lastSeekTarget_ = undefined;
    });

  }

this.ready(function() {
        this.load();
        this.play();
        this.currentTime(options.startTime);
      }, true);
    }

    // Add global window functions that the swf expects
    // A 4.x workflow we weren't able to solve for in 5.0
    // because of the need to hard code these functions
    // into the swf for security reasons
    window.videojs = window.videojs || {};
    window.videojs.Flash = window.videojs.Flash || {};
    window.videojs.Flash.onReady = Flash.onReady;
    window.videojs.Flash.onEvent = Flash.onEvent;
    window.videojs.Flash.onError = Flash.onError;

    this.on('seeked', function() {
      this.lastSeekTarget_ = undefined;
    });

    // calling into the SWF can be expensive, especially if Flash is
    // busy rendering video frames
    // automatically cache commonly used properties for a short period
    // of time so that multiple calls within a short time period don't
    // all pay a big performance penalty for properties that change
    // relatively slowly over time
    const getCurrentTimeCached = timeExpiringCache(() => {
      return this.el_.vjs_getProperty('currentTime');
    }, 100);

    this.currentTime = (time) => {

// (hide/resize/fullscreen) in certain browsers
    // This allows resetting the playhead when we catch the reload
    if (options.startTime) {
      this.ready(function() {
        this.load();
        this.play();
        this.currentTime(options.startTime);
      }, true);
    }

    // Add global window functions that the swf expects
    // A 4.x workflow we weren't able to solve for in 5.0
    // because of the need to hard code these functions
    // into the swf for security reasons
    window.videojs = window.videojs || {};
    window.videojs.Flash = window.videojs.Flash || {};
    window.videojs.Flash.onReady = Flash.onReady;
    window.videojs.Flash.onEvent = Flash.onEvent;
    window.videojs.Flash.onError = Flash.onError;

    this.on('seeked', function() {
      this.lastSeekTarget_ = undefined;
    });

  }

// If no script URL is associated, skip it.
    if (!value) {
      return;
    }

    // Find all script elements and remove them.
    Array.prototype.slice
      .call(document.querySelectorAll(`script[src="${value}"]`))
      .forEach(el => el.parentNode.removeChild(el));
  });

  // Clear the internal cache that have been downloaded.
  playerScriptCache.clear();

  // Dispose any remaining players from the `videojs` global.
  disposeAll(window.videojs);

  // There may be other `videojs` instances lurking in the bowels of the
  // `bc` global. This should eliminate any of those.
  getBcGlobalKeys().forEach(k => disposeAll(window.bc[k].videojs));

  // Delete any global object keys that were created.
  getGlobalKeys().forEach(k => {
    delete window[k];
  });
};

QUnit.test('videojs should exist on the window', function(assert) {
  assert.ok(window.videojs, 'videojs exists on the window');
});

static getTech(name) {
    if (Tech.techs_ && Tech.techs_[name]) {
      return Tech.techs_[name];
    }

    if (window && window.videojs && window.videojs[name]) {
      log.warn(`The ${name} tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)`);
      return window.videojs[name];
    }
  }
}

static getTech(name) {
    if (!name) {
      return;
    }

    if (Tech.techs_ && Tech.techs_[name]) {
      return Tech.techs_[name];
    }

    name = toTitleCase(name);

    if (window && window.videojs && window.videojs[name]) {
      log.warn(`The ${name} tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)`);
      return window.videojs[name];
    }
  }
}