Generate next game iteration

handleStep.js

class App extends Component {
    state = {...};
    runStopButton = () => {...}
    handleClearBoard = () => {...}
    handleNewBoard = () => {...}
    handleToggleCellStatus = () => {...}

    handleStep = () => {
        const nextStep = prevState => {
            const boardStatus = prevState.boardStatus;
            const clonedBoardStatus = JSON.parse(JSON.stringify(boardStatus));
			
            const amountTrueNeighbors = (r,c) => {
                const neighbors = [[-1, -1], [-1, 0], [-1, 1], [0, 1], [1, 1], [1, 0], [1, -1], [0, -1]];
                return neighbors.reduce((trueNeighbors, neighbor) => {
                    const x = r + neighbor[0];
                    const y = c + neighbor[1];
                    const isNeighborOnBoard = (x >= 0 && x < totalBoardRows && y >= 0 && y < totalBoardColumns);
                    /* No need to count more than 4 alive neighbors */
                    if (trueNeighbors < 4 && isNeighborOnBoard && boardStatus[x][y]) {
                        return trueNeighbors + 1;
                    } else {
			return trueNeighbors;
		    }
                }, 0);
            };
			
            for (let r = 0; r < totalBoardRows; r++) {
                for (let c = 0; c < totalBoardColumns; c++) {
                    const totalTrueNeighbors = amountTrueNeighbors(r,c);
					
                    if (!boardStatus[r][c]) {
                        if (totalTrueNeighbors === 3) clonedBoardStatus[r][c] = true;
                    } else {
                        if (totalTrueNeighbors < 2 || totalTrueNeighbors > 3) clonedBoardStatus[r][c] = false;
                    }
                }
            }
			
            return clonedBoardStatus;
        };
		
        this.setState(prevState => ({
            boardStatus: nextStep(prevState),
            generation: prevState.generation + 1
        }));
    }
	
    // Other methods ...
}