What is the process to remove duplicate nested data in ES5.6?

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Assuming you want to remove duplicate objects from an array that has nested objects, you can use the following process in ES5.6:

1. First, convert the array into a string using JSON.stringify().
2. Use a loop or any library function to remove duplicates from the converted string.
3. Convert the cleaned-up string back to an array using JSON.parse().

Here's an example code snippet:

var data = [
  { name: "John", age: 25, address: { city: "New York", country: "USA" } },
  { name: "Jane", age: 30, address: { city: "London", country: "UK" } },
  { name: "John", age: 25, address: { city: "New York", country: "USA" } }
];

var stringifiedData = JSON.stringify(data);
var uniqueString = [...new Set(stringifiedData)];
var uniqueData = JSON.parse(uniqueString);
console.log(uniqueData); //[{name: "John", age: 25, address: { city: "New York", country: "USA" }}, {name: "Jane", age: 30, address: {city: "London", country: "UK"}}]

Note that this approach relies on the string representation of the objects within the array. As a result, it may not work effectively with complex objects containing functions, Date objects or circular references.