jkantr

const cartReducer = (state = {
    cartItems: 0,
    items: products,
    cartContents: [],
}, action) => {
    switch (action.type) {
        case "ADD_TO_CART": {
            const existingItem = state.cartContents.find(item => {
                return item.id === Number(action.payload);
            });

jkantr

import BonusContext from './bonus-context';

class App extends Component {
  static contextType = BonusContext;

  render() {
    return(
    <li className={ this.context ? 'current' : '' }>
      <NavLink
         exact

jkantr

// some helper fns.. maybe in a different file or not
function validateEmail(email){
	return false;
}

export default (db) => {
	// define some route handlers
    function onPostCheckMail (req, res) {
    	if(validateEmail(req.body.email) === true){ //validateEmail is undefined

jkantr

	routeConfig.post('/Dashboard/Index', repos.DashboardRepository.getRangeData(repos), (req, res) => {
		let queries = [], 
			sess = req.userSession,
			filter = req.rangeFilter;

		queries.push(repos.PromotionRepository.getAgencyPromotions(sess.agencyId, 'all'));
		queries.push(repos.DashboardRepository.getIndex(repos, filter, sess));
		queries.push(repos.PolicyRepository.getPolicies(filter, true));

		Promise.all(queries)

jkantr

// app.js
// ...

const models = require('./models/');

const state = {
  models,
  logger,
  errorReporter,
};

jkantr

module.exports = {
    startTimer() {
        return process.hrtime()
    },

    stopTimer(timer) {
        const [s, ns] = process.hrtime(timer)
        return ((s * 1e9) + ns) / 1e6
    }
}

jkantr

/** when wrapping a function with many other functions, the identity of the
    original function quickly gets lost, and it's hard to make sense of it 
    at a glance */
const Timer = inject("someStore")(observer(class Timer extends React.Component {
    /* ... */
}))


/** you can make it less hard to read by separating your component's definition
    and it's functional wrappers **/

jkantr

const fs = require('fs');
const path = require('path');
const { promisify } = require('util');
const writeFileAsync = promisify(fs.writeFile);
const s3etm = require('s3-emails-to-mongo');

// MAKE THIS PART DYNAMIC LATER
s3etm.configure({
    Bucket: 'zhillb-mail',
});

jkantr

const Promise = require('bluebird');
const bcrypt = require('bcrypt');
const User = require('../models/user');
const { LoginError } = require('../errors');

function checkPassword(password, hash) {
    return Promise.try(() => {
        return bcrypt.compare(password, hash);
    }).then((result) => {
        if (!result) {

jkantr

// do this

cache.remember('key1', 600, function() {
    return mysql.MobileAction.findOne({ where: {action_id: req.query.D} })
}).then((val) => {
    console.log('set: ', val);
})