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In WordPress, a draft is an unpublished version of a post or page. The WordPress editor automatically saves new content as a draft whilst you are working on it. The draft feature in WordPress allows you to create a post and come back to it at a later point.
WordPress gives several draft options so that you can save your work without having to publish it immediately.
WordPress Will automatically save a draft of your post. This autosave is stored in your WordPress database temporarily.
If you go to Post >All Posts or Pages > All Pages In the WordPress dashboard, you can see which posts are Draft and Publish.
When you click immediately, you can set the date and time the post should be published.
You publish a post by clicking the Publish button then by default, the post will be published immediately.
Once a post has been published, you can switch it back to a draft so that it is no longer visible on your website.
Just click the Switch to draft then your post will be switched to draft.