将字符串解析为对象？（JavaScript）

Question

Would it be possible to parse a string as follows… {"Key": "Value"} back into a object? When I ever I try to parse it, I receive errors. I've been trying to use json.parse , but that does not work either.

This is what i have mapped out, but for this format it fails.

 // Creating a list of objects, while mapping properties of an object let obj = "{ "key": "3" }"; let objList = Object.entries(obj).map(([key, value]) => Object.fromEntries(new Map([ [key, value] ])));

Answer 1

let obj = "{
  "key": "3"
}";

This is incorrect: if you want to write a multiline string , you have to put a \\ at the end of the line:

let obj = "{\
    "key": "3"\
}";

But there is another error: you have to escape the " :

let obj ="{\
    \"key\": \"3\"\
}";

You could use ' for enclosing string instead of " so you don't need the escape:

let obj = '{\
    "key": "3"\
}';

Anyway this is a little string, you could write it in one line:

let obj = '{"key": "3"}';

Now you can use JSON.parse.

 let obj = '{"key": "3"}'; console.log( JSON.parse(obj) );