I have lost my original react JS code files. All I have left with now is the final production minified JS file, which was generated from the original files using webpack. Is there any way that I could somehow unminify or generate back the original files from the availalbe minified file? I don't have any source mapping available.
No, there is no retained information about the old variable/methods names and so once you have minified, it can't be unminified back.