An checklist that preserves its items in localStorage.

• Modify file structure so that it's a bit more organized
• Use data-index or id, don't need both
• Check e.target.type instead of checking if e.target contains a string with matches()
• Remove unnecessary call to populateList() in toggleDone()
• Add functionality to remove checklist items

• If the object key and value have the same name, you can just put the name of the variable (in ES6)
• Reset method of forms