JSON and localStorage Demo

JSON

• serialize - converting data into a string (or some other kind of value like "binary") so your program can send it to another computer
• deserialize - converting text (or something another computer has sent to your program) and turn it into data

localStorage

• `JSON.stringify(value)` will turn the value passed into it into a string.
• `JSON.parse(str)` will turn a JSON-formatted string into a JavaScript object.
• Web Storage API - has a much larger storage limit than cookies, making it a useful place to store data on the client side
• `sessionStorage` - persists for the duration of the session and ends when a user closes the browser
• `localStorage` - persists past the current session and has no expiration date
• `localStorage.setItem('key', value)`
• `const value = localStorage.getItem('key')`