Yes, Joker was indeed based on a comic. The character originated in DC Comics and has been adapted for various media, including this particular iteration.
It depends. Some aspects of the Joker comic are quite accurate in depicting his character and storylines, while others may take creative liberties for narrative purposes.
The new Joker is usually rooted in the comic source material. However, there could be variations and additions to add depth or modernize the character for the contemporary audience.
Sure is. Joker is a comic book movie that delves deep into the psyche of the iconic character, offering a unique and compelling take that stays true to the comic book roots.