How to convert a JSON-like (not JSON) string to an object?

Question

We all know we can use JSON.parse() to convert the string \'{\"a\":0,\"b\":\"haha\"}\' to the object {a: 0, b: \'haha\'}.

But can

Answer 1

Something like this might work:

function evalJsString(str) {
    let a = null;
    try {
        eval('a = ' + str);
    } catch (err) {
        console.error(err);
    }
    if(typeof a === "object")
      return a;
    else
      return null;
}

evalJsString('({a: 0, b: "haha"})');