A Simple Flask Application that utilizes JavaScript's localStorage to save memos on the Local Browser
localStorage allows us to store persistent data on the client-side without any expiration date using vanilla Javascript. The interface is quite simple:
To store an object:
localStorage.setItem("item_name", item_value);
To retrieve the object:
localStorage.getItem("item_name")
localStorage can be also indexed using the item_names as keys
localStoage["item_name"] = item_value;
All the data in localStorage is stored in the form of strings. Therefore, if we want to store out Memo logs as Arrays, we first need to convert them into string representation.
We use the JSON stringify for this:
localStorage.setItem("logs", JSON.stringify(memos))
And use the JSON parse while retrieving them back
memos = JSON.parse(localStorage.getItem("logs"));
Note: localStorage is highly insecure and should never be used to store any kind of private data