leonnardovv

## react-web3-example.js
import { useState, useEffect } from 'react'
import Web3 from 'web3'

const [account, setAccount] = useState(null)
let [web3, setWeb3] = useState(null)
useEffect(() => {
  checkAccount()
}, [])

// invoke to connect to wallet account
	import { useState, useEffect } from 'react'
	import Web3 from 'web3'

	const [account, setAccount] = useState(null)
	let [web3, setWeb3] = useState(null)
	useEffect(() => {
	checkAccount()
	}, [])

	// invoke to connect to wallet account