What are the benefits of pure functions

Some of the major benefits of pure functions are listed below,

• Easier testing: Since output depends only on input, pure functions are simple to test.
• Predictability: No hidden side effects make behavior easier to reason about.
• Immutability: Pure functions align with ES6 best practices, such as preferring const over let, supporting safer and more maintainable code.
• No side effects: Reduces bugs related to shared state or mutation.