import React from "react"; import { Button } from "@material-ui/core"; import { PlayArrow, Stop } from "@material-ui/icons"; export const StartButton = ({ isMeasuring, start, stop, }: { isMeasuring: boolean; start: () => void; stop: () => void; }) => isMeasuring ? ( <Button variant="contained" color="secondary" onClick={stop} startIcon={<Stop />} > Stop Measuring </Button> ) : ( <Button variant="contained" color="primary" onClick={start} startIcon={<PlayArrow />} > Start Measuring </Button> );