memon07

import React, {
  Dispatch,
  SetStateAction,
  useState,
  useRef,
  useEffect,
} from 'react';

export default function useMountedState<S>(
  initialState: S | (() => S),

memon07

import React , { useState } from 'react'

function Clipboard {
  
  const [copySuccess , setCopySuccess] = useState(false)
  const [textArea, setTextArea] = useState()

  function copyCodeToClipboard () {
      const el = textArea
      el.select()

memon07

import React , { Component } from 'react'

class Map extends Component {

    componentDidMount () {
        this.renderMap()
    }

    renderMap = () => {
        loadScript('https://maps.googleapis.com/maps/api/js?key=APIKEY&callback=initMap')

memon07

```
Method 1
```
let fibonacci = function(n){
  if(n == 1) {
    return [0,1]
  }
  else {
    let s = fibonacci(n-1)
    console.log(s)

memon07

const redux = require('redux')
const createStore = redux.createStore;

const initialState = {
    counter : 0
}

// reducer
const rootReducer = (state = initialState,action) => {
    if (action.type === 'INC_COUNTER') {