How can I parse such a string?

Question

JavaScript

I have a similar string
"{one:{hello:[{two:three}]}}"
How can I turn it into a JSON object if the function JSON.parse()throws an error

SyntaxError: JSON.parse: expected property name or '}' at line 1 column 2 of the JSON data

Answer 1

You need to use the JSON5 decoder
https://json5.org/
Oops , didn't notice you didn't have three in quotes. Then it won't fly.
Then you can try like this:

var myjson = unquotedJson.replace(/(['"])?([a-zA-Z0-9]+)(['"])?/g, '"$2"');
JSON.parse(myjson)

but this is unreliable, if the format of the input string is not known, maybe there will be Russian letters or something else