Zend certified PHP/Magento developer

How to save a complete page in Chrome using JavaScript (from Dev Tools)? [migrated]

In Chrome, to save a complete web page I can click Ctrl+S > “Format: Web page, Single File” > save it as “.mhtml”.

How can I do the same thing but automatically, using JavaScript?

If I open the chrome devtools, is there a line of javascript I can enter that will accomplish that?