Deep vs. Shallow Cloning in JavaScript: Implementation Patterns and Pitfalls
Primitive vs. Reference Types
Category
Examples
Storage
Copy Semantics
Primitive
string, number, boolean, undefined, null, symbol, bigint
Call-stack
Value
Reference
Object, Array, Date, RegExp, Function
Heap
Referenec (pointer)
Primitives are copied by value; references are copied by address. Two variables that share the same addres ...
Posted on Tue, 30 Jun 2026 17:24:10 +0000 by kliopa10