Refering local valiable without `this` in function component

I want to refer to the variable in function component, I think normally I use this to refer to local variable.

However in function component,I can't use this.

Maybe, I am still confused by function component though...

export default function TrackPage(props) {      const classes = useStyles();        useEffect(() => {         var playlist = 1;      }      function handleToolBarClick(){          this.playlist // this is empty.      }  }  

https://stackoverflow.com/questions/65948626/refering-local-valiable-without-this-in-function-component January 29, 2021 at 12:05PM