When the javascript engine starts executing the code it will store variables inside of the memory. for storing data, runtime uses two different memory:
- Stack memory
- Heap memory
Javascript only can communicate with stack memory.
Before explaining the differences around these memories I should explain the data types in javascript. In javascript, we have two different data types:
- Primitive types: primitive types stored directly in the stack
- String, Number, Boolean, Null, Undefined, Symbol, BigInt
- Reference types: Stored in the heap and accessed by reference from Stack
- Arrays, Functions, Objects
For maximum optimization in the memory space javascript engine uses something called garbage collector. it will clean the value immediately when a value is not reachable via a variable(label).
Top comments (1)
What is the purpose of this? Is it unfinished?