It's a Pushdown Automaton that very quickly determines if a JSON text is syntactically correct. It could be used to check whether a JSON file is syntactically correct or not.It takes a input file as input and shows the error in proper format if any.
We all faces problem when working with JSON expecially when working with API's dependng in JSON.So it's handy to keep a JSON-validator in the terminal itself to make the development process fast.
$ sudo make instal