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export const Counter = ({ initialValue, onChange }) => {
  const [count, setCount] = useState(initialValue)

  useEffect(() => onChange(count), [count])

  const incrementCounter = () => setCount(count + 1)

  return (
    <div>
      Count: {count}

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const mapExample = arr => arr.map(square)

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set nocompatible
filetype off

set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
Plugin 'gmarik/Vundle.vim'
Plugin 'tpope/vim-fugitive'
Plugin 'L9'
Plugin 'int3/vim-extradite'
Plugin 'scrooloose/syntastic'

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/* global Obniz */
import React from 'react'
import tokens from './tokens'

class RemoteDevice extends React.Component {
  state = { text: this.props.text || `id: ${this.props.id}` }

  componentDidMount () {
    const { id } = this.props
    const access_token = tokens[id]

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#include <ESP8266WiFi.h>

const char* ssid = "ssid";
const char* password = "password";

WiFiServer server(80);

String header;

int gpio_pins [] = { D0, D1, D2 };

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import React from 'react'
import DataLoader from 'core/DataLoader'
import CRUDListContainer from 'core/common/CRUDListContainer'
import requiresAuthentication from 'openstack/util/requiresAuthentication'
import ListTable from 'core/common/list_table/ListTable'
import createCRUDActions from 'core/helpers/createCRUDActions'
import { compose } from 'core/fp'
import { withAppContext } from 'core/AppContext'
import { withRouter } from 'react-router-dom'
import { withScopedPreferences } from 'core/PreferencesProvider'

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import React from 'react'
import Picklist from 'core/common/Picklist'
import createCRUDComponents from 'core/helpers/createCRUDComponents'
import Loader from 'core/common/Loader'
import { withAppContext } from 'core/AppContext'
import { loadInfrastructure } from '../infrastructure/actions'
import { deleteNamespace } from './actions'

const ListPage = ({ ListContainer }) => {
  class ListPage extends React.Component {

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import React from 'react'
import PropTypes from 'prop-types'
import { withAppContext } from 'core/AppContext'
import { compose } from 'ramda'

class FSQuery extends React.Component {
  state = { data: null }

  async componentDidMount () {
    const { context, path } = this.props

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const GoalsForToday = () => (
  <FSQuery path="/users/$userId/goals">
    {({ data }) => {
      return (
        <Section title="Goals for today">
          <AddGoal />
          <br />
          <Paper>
            <Table>
              <TableHead>

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int PUL = 10;
int DIR = 11;
int ENA = 12;

void setup() {
  pinMode(PUL, OUTPUT);
  pinMode(DIR, OUTPUT);
  pinMode(ENA, OUTPUT);

  digitalWrite(PUL, LOW);