What is immutability in programming?
Immutability in programming refers to the inability to change an object's state after it has been created. This concept is crucial in functional programming.
Why is immutability important?
Immutability helps prevent side effects, making code easier to understand, test, and maintain. It also enhances performance in concurrent programming.
Can you give me an example of an immutable data structure?
Sure! In languages like JavaScript, the Object.freeze()
method can create immutable objects. In functional programming languages, data structures like persistent lists are commonly used.
How does immutability affect performance?
Immutability can improve performance by enabling optimizations like structural sharing, where unchanged parts of data structures are reused.
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