Live Javascript edit in Safari?

In Chrome this is possible, but I don't find a way to do it in Safari. Is it possible? How?

How do I change JavaScript settings in Safari?

Open the Settings app on your iPhone. Scroll down until you see "Safari," and tap it. At the bottom of the page, tap "Advanced." On the Advanced page, turn JavaScript on by swiping the button to the right.

How do I run JavaScript in Safari console?

To do that, go into Safari's preferences (Safari Menu > Preferences) and select the Advanced Tab. Once that menu is enabled, you will find the developer console by clicking on Develop > Show Javascript Console. You can also use the shortcut Option + ⌘ + C .

How do I edit text in Safari website?

Once you find the text you want to tweak, right-click on it, and choose Edit Text. Type away to your heart's content, and then hit return. The Web page you're modifying will update instantly.

Currently this is not possible.