Under what circumstances will localstorage be deleted?

There are four reasons why localstorage is deleted: 1. When the user manually clears the browser cache and data, the data in LocalStorage will also be cleared; 2. When the website storage capacity exceeds the limit, the browser may automatically Clean up some or all LocalStorage data to free up space; 3. When browsing in private mode, the data in LocalStorage is usually not retained; 4. When using specific browser settings or plug-ins, it will affect the storage and deletion behavior of LocalStorage .

# Operating system for this tutorial: Windows 10 system, Dell G3 computer.

Data in LocalStorage may be deleted under the following circumstances:

1. User manually clears browser cache and data: When user manually clears browser cache, data in LocalStorage will also be cleared together.
2. Website storage capacity exceeds limit: Each website has a limit on the storage capacity of LocalStorage. When the storage capacity exceeds the limit, the browser may automatically clear some or all LocalStorage data to make room.
3. Browsing in private mode: In the browser's privacy mode, the data in LocalStorage is usually not retained, and the data will be cleared after turning off the privacy mode.
4. Specific browser settings or plug-ins: Certain browser settings or plug-ins may affect the storage and deletion behavior of LocalStorage.

It should be noted that since LocalStorage is stored on the client, developers should handle important data with caution and avoid relying solely on LocalStorage for necessary data without a backup mechanism.

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