How to Deep clone in javascript

Question

How do you deep clone a JavaScript object?

I know there are various functions based on frameworks like JSON.parse(JSON.stringify(o)) and $.extend(t

Answer 1

Avoid use this method

let cloned = JSON.parse(JSON.stringify(objectToClone));

Why? this method will convert 'function,undefined' to null

const myObj = [undefined, null, function () {}, {}, '', true, false, 0, Symbol];

const IsDeepClone = JSON.parse(JSON.stringify(myObj));

console.log(IsDeepClone); //[null, null, null, {…}, "", true, false, 0, null]

try to use deepClone function.There are several above