Need help in formating json in java script

Hi, I have a json content in the a object and would like to pretty it and display in other field, im unable to achieve it,

JSON.stringify is not working for me, need help

You would need to post your code for people to be able to help you

project shared here https://drive.google.com/file/d/1fPoCjOhZ9nM6sORXPa8fxtnW8lEl02U2/view?usp=sharing