puru-soni / mark-down-app

Features to add with localStorage:

1. Sync notes with localStorage : App.jsx

   DOCS

   • https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage

   • Interact with localStorage window.localStorage.getItem( "key" )
     window.localStorage.setItem( "key", String: value )

   • string conversion and vise-versa Object to String: JSON.stringify() String to Object: JSON.parse()

2. Add note summary titles : Sidebar.jsx

3. Move modified notes to the top of the list : App.jsx

4. delete notes : App.jsx

Adding Firebase to the project

- Setup firebase config and initialise the app
- Create a instance of database and
- setup a collection

Use firestore function - onSnapshot to add a listner for database to sync with local states
Firestore databse overwrite ID for each document

onSnapshot - listener

addDoc - create a document with a parameters : instance of collection, new document {promise}

doc - gets a specific document, parameters : instance of database, collection name, document id {return document ref}

deleteDoc - deletes a document in the firestore database, parameter : document ref {promise}

setDoc - updates a document in the firestore database, parameter: document ref, {updated object}, {merge : true/false} either you can update/overwrite the complete document or merge it with old document {promise}

Debouncing

Problem: currently we are making request to firestore on every single keystroke, therefore need to reduce request for read and write from firestore

Solution: Debouncing
- delay the request for specified amount of time (let 500ms).
- if another request happens within the specified delay time, then cancel the prev request and set up a new delay for the new request.

Implementation:
- remove connection of updating database between editor and app - for making request to firestore
- setup a useState state of keeping track of body of note
- using setTimeout with useEffect to handle debouncing