Soon after, she appeared on two episodes of the hit show Full House, guest starring as a character named Jennifer. She also had a small role on Harry and the Hendersons, playing Jessica. Fishel's mother became her full-time manager.

"Full House" Greek Week (TV Episode 1990) - Jennifer Gatti as Elena - IMDb.

In general, F12 serves as a shortcut to open developer tools in most web browsers. Additionally, F12 can be used for other purposes in different applications, like opening the "Save As" dialog box in Microsoft Office programs.

When you press F12 in browser, it opens console, which is used by programmers to debug their code and the panel opens will have many tabs. One of which will show the HTML dom tree created by the browser engine while rendering the web pages.