SOURCE

var book = {
    title: "Professional JavaScript",
    authors:["Cheryl", "Jay"],
    edition: 1,
    year: 2021,
    releaseDate: new Date(2021, 12, 20)
};
var jsonText = JSON.stringify(book);
console.log(jsonText);
var bookCopy = JSON.parse(jsonText, function(key, value){
    if(key == "releaseDate"){
        console.log(value);
        return new Date(value);    
    }else{
        return value;    
    }
});
console.log(bookCopy.releaseDate.getFullYear());