LocalStorage and sessionStorage are both web storage options provided by web browsers to store data on the client-side. Here's a general guideline for what types of data are commonly stored in each: LocalStorage: LocalStorage is designed for persistent storage of data that needs to be available even after the browser is closed and reopened. It provides a larger storage capacity compared to sessionStorage. Typically, you would store the following types of data in LocalStorage: 1. User Preferences: Storing user-specific settings, preferences, or configurations that persist across multiple sessions. 2. User Authentication Tokens: Storing authentication tokens or session information to keep the user logged in. 3. Cached Data: Caching data that can be reused across different sessions, such as static content, configuration data, or data fetched from APIs. 4. Application State: Storing the state of the application, including user inputs or selections, to restore the application to its previous state when reopened. SessionStorage: SessionStorage is designed for storing data that is only needed during a particular browsing session. The data stored in sessionStorage is accessible within the same browser tab or window but is cleared once the tab or window is closed. Typically, you would store the following types of data in sessionStorage: 1. Temporary Data: Storing temporary data or information that is only needed for a specific task or session. 2. Shopping Cart Data: Storing items added to a shopping cart during the user's browsing session. 3. Form Data: Storing form data temporarily, allowing users to navigate between form pages without losing their inputs. 4. Page State: Storing the state of a specific page or component within the session to maintain its functionality during navigation. It's important to consider the sensitivity and security of the data being stored. Avoid storing sensitive data like passwords, personally identifiable information (PII), or confidential data in either LocalStorage or sessionStorage. Instead, sensitive data should be stored securely on the server-side. Remember that both LocalStorage and sessionStorage are limited to the client-side and are accessible by JavaScript, so it's important to be cautious about the data you store and ensure that it aligns with your application's security requirements and privacy policies.