How does Apple 6 clear its memory?

The method for clearing the memory of the iPhone 6 phone is as follows:

First, click "Settings" on the iPhone 6 mobile phone desktop.

Second, after entering the settings, select the "General" option.

Third, then find the item "storage space and iCloud usage" and click enter.

4. After entering, find the item "Manage Storage Space" under Storage Space, and click Enter.

5. After entering, find the application or image file to delete, and click Delete.