Deep Clone

Data Structures, Operators & Stringsmedium

Course · Section 9: Data Structures, Modern Operators and Strings · Lecture 118: Enhanced Object Literals

Implement `deepClone(value)` returning a deep copy of a JSON-compatible value.

Input: deepClone({"a":{"b":1}})

Output: {"a":{"b":1}}

Input: deepClone([1,2,{"x":3}])

Output: [1,2,{"x":3}]

+ 1 hidden test run on Submit.

Common pitfalls

This drops functions, undefined, Dates become strings, and it fails on cyclic data.
It is only safe for JSON-compatible values.

Approach & explanation (try first)

Serializing then parsing produces a deep copy for plain JSON data, with the documented limitations.

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