Difference between Mutable and Immutable | JavaScript Tutorials in Hindi | Interview Question #41
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In JavaScript Mutable objects can be changed or modified after creation & Immutable objects cannot be changed directly
Primitive data types like Strings & Numbers are immutable. Once you create them, you can't change their value directly.
Reference data type like, arrays & objects are mutable. Once you create them, can be changed or modified after creation.
Mutable: Objects whose state can be modified after creation are considered mutable. This means that you can change the values of properties or elements within the object. Mutable data types in JavaScript include arrays and objects.
Immutable: Objects whose state cannot be changed after creation are considered immutable. Once an immutable object is created, its state cannot be modified. Immutable data types in JavaScript include strings and numbers.
The difference between mutable and immutable objects lies in how they handle modifications. Mutable objects allow changes to their internal state, while immutable objects maintain their state throughout their lifecycle. This concept is essential for understanding JavaScript's behavior when working with different data types and structures.
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