Deep copy with JSON

deepCopy.js

const originalObject = {
    string: 'primitive string',
    stringObj: new String('string obj'),
    number: 100,
    numberObj: new Number(100),
    bigInt: BigInt("9007199254740991"),
    nan: NaN,
    array: [1, 2, 3],
    arrayObj: new Array(2),
    bool: false,
    boolobj: new Boolean(false),
    nul: null,
    date: new Date(),
    undef: undefined,
    inf: Infinity,
    regExp: /(\w+)\s(\w+)/
}

const result = JSON.parse(JSON.stringify(originalObject));
console.log(result);
{
    string: 'primitive string',  
    stringObj: 'string obj',           // converted to primitive
    number: 100,
    numberObj: 100,                    // converted to primitive
    bigInt: BigInt("9007199254740991"),// not JSON safe and throw error
    nan: null,                         // forced to 'null'
    array: [1, 2, 3],
    arrayObj: [null, null],
    bool: false,
    boolobj: new Boolean(false),      // converted to primitive
    nul: null,
    date: "2021-04-27T17:05:30.332Z", // stringified
    undef: null,                      // forced to 'null'
    inf: null,                        // forced to 'null'
    regExp: null                      // forced to 'null'
}