What are reference types in programming?

What are reference types in programming?

Reference types are data types that store references to the actual data rather than the data itself. Examples include objects, arrays, and functions.

How do reference types differ from value types?

Value types store the actual data, while reference types store a reference to the data's location in memory. This means that changes to a reference type can affect all references to that data.

Can you give me an example of a reference type in JavaScript?

Sure! In JavaScript, an array is a reference type. When you create an array and assign it to a variable, that variable holds a reference to the array, not the array itself.

What happens if I assign one reference type to another?

If you assign one reference type to another, both variables will point to the same object in memory. Changes made through one variable will reflect in the other.