Full-Stack React Projects - Second Edition

Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "Mount the downloaded WebStorm-10*.dmg disk image file as another disk in your system."

A block of code is set as follows:

addItem(item, cb) {    let cart = []    if (typeof window !== "undefined") {      if (localStorage.getItem('cart')) {        cart = JSON.parse(localStorage.getItem('cart'))      }      cart.push({        product: item,        quantity: 1,        shop: item.shop._id      })      localStorage.setItem('cart', JSON.stringify(cart))      cb()    }}

When we wish to draw your attention to a particular part of a code block, the relevant ...