What is the "other" in the storage space of iPhone6? How to delete it?

The "other" in the storage space of iPhone6 is the cached data of the mobile phone application, and the cached data files are some temporary files downloaded when the application runs. Can be deleted in the application.

Delete steps are as follows:

1. Open the application that needs to clear the cached data.

2. Click Settings in the program.

3. Click "Clear Cache" and the cached data will be deleted.