// check version
node -v || node --version

// list installed versions of node (via nvm)
nvm ls

// install specific version of node
nvm install 6.9.2

// set default version of node
nvm alias default 6.9.2

// switch version of node
nvm use 6.9.1

// Vanilla JS Solution:
var app = document.getElementById('app');

var typewriter = new Typewriter(app, { loop: true });

typewriter
    .typeString("I'm John and I'm a super cool web developer")
    .pauseFor(3000)
    .deleteChars(13) // "web developer" = 13 characters
    .typeString("person to talk with!") // Will display "I'm John and I'm a super cool person to talk with!"
    .start();

// React Solution:
import Typewriter from 'typewriter-effect';

<Typewriter
    options={{ loop: true }}
    onInit={typewriter => {
        typewriter
            .typeString("I'm John and I'm a super cool web developer")
            .pauseFor(3000)
            .deleteChars(13) // "web developer" = 13 characters
            .typeString("person to talk with!") // Will display "I'm John and I'm a super cool person to talk with!"
            .start();
    }}
/>

export const Main = () => {
    const [title, setTitle] = useState('');
    
    return (
        <ChildComponent
            title={title}
            onChange={e => setTitle(e.target.value)}
        />
    );
};

export const ChildComponent = ({ title, onChange }) => {
    return (
        <Box component="form" onSubmit={() => {}} noValidate mt={5}>
            <TextField
                fullWidth
                id="title"
                label="Title"
                name="title"
                autoComplete="title"
                autoFocus
                color="primary"
                variant="filled"
                InputLabelProps={{ shrink: true }}
                value={title}
                onChange={onChange}
            />
        </Box>
    );
};

const ResponsiveCardImg = styled(Card.Img)`
    // For screens wider than 768px
    @media(min-width: 768px) {
        // Your responsive styles here.
    }

    // For screens smaller than 768px
    @media(max-width: 768px) {
        // Your responsive styles here.
    }
`

export default function App() {
    return (
        <MainContainer>
            <Container>
                <Card text='white' bg='dark' style={styles.mainCard}>
                <ResponsiveCardImg
                    style={styles.cardImage}
                    onClick={handleClick}
                    src={apeImage}
                    alt='Degenerate Ape Academy'
                />
                <Card.Body>
                    <Card.Title className='text-center' as='h2'>
                    {apeId}
                    </Card.Title>
                </Card.Body>
                </Card>
            </Container>
        </MainContainer>
    );
}

import { createSlice } from "@reduxjs/toolkit";

const alert = createSlice({
	name: "alert",
	initialState: {
	msg: "",
	status: "",
	},
	reducers: {
	set_alert: (state, action) => {
	return {
	...state,
	msg: action.payload.msg,
	status: action.payload.status,
	};
	},
	clear_alert: (state, action) => {
	return {
	...state,
	msg: "",
	status: "",
	};
	},
	},
});

export default alert.reducer;

const { set_alert, clear_alert } = alert.actions;

export const setAlert = (msg, status) => dispatch => {
	dispatch(set_alert({ msg, status }));
	setTimeout(() => dispatch(clear_alert()), 4000);
};

export const clearAlert = () => dispatch => {
	dispatch(clear_alert());
};

const jwt = require("jsonwebtoken");

const authToken = (req, res, next) => {
	const token = req.headers["x-auth-token"];

	try {
	req.user = jwt.verify(token, process.env.ACCESS_TOKEN_SECRET);

	next();
	} catch (err) {
	console.log(err.message);
	res.status(401).json({ msg: "Error authenticating token" });
	}
};

module.exports = authToken;