Client side storage in storing data in the clients browser using Javascript API's.
Because cookies had limitations... local storage was invented. Unless you want to support old browsers, dont use cookies anymore...
Local storage persists the data and session storage lasts only until the browser is closed.
Both local and session storage use the same api.
Both use key value pairs
Object and Aray storage is now allowed
Data is domain specific
For indexed db keep in mind the storage size, especially on mobile.
full database
arrays, objects, and videos
structured data with key
async to allow application operation
Cannot sync with server backend data
no data in private mode
also depends on browser quota limit