How to View inline external javascript codes on wp?

Does anyone is using firefox/chrome “inspect element” features? I’ve digging this great feature where i can instantly check my page html’s, css, style editor. it would directly give you which codes you want to edit and its locations. unfortunately, html show’s external javascripts that i couldn’t that i couldnt find on my wp theme editor or i just don’t know which file is the location. ex. on firefox browser “inspect element” > on style inspector view, i can see the whole html codes including external javascripts where i want to modify, such as “INLINE:107 , INLINE:88 etc.

and i can’t find this scripts on wp editor.

I just need a steps or if anyone can show where to view this external js codes in wp editor files, or do i need a certain plugin to view this codes?

My point is: I don’t need to add any js scripts or any external scripts. I just want to view the external js scripts so i can make modify its codes through wp.

Thanks alot!