Function is not allowed in JSON.
If we need to have a function in JSON, we have to include it as a string.
Later, we can convert it back into a function
var text = '{ "name":"John", "age":"function () {return 30;}", "city":"New York"}';
var obj = JSON.parse(text);
obj.age = eval("(" + obj.age + ")");
document.getElementById("demo").innerHTML = obj.name + ", " + obj.age(); by Valeri Tandilashvili
4 years ago