Understanding Pure Functions and State

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What is a pure function in programming?

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A function that returns the same output for the same input and has no side effects

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Why are pure functions important in programming?

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They help in debugging and testing by ensuring consistent behavior

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Immutable state

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The state cannot be changed once it is created

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How does immutability improve performance in applications?

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It allows for easier tracking of changes and optimizations like memoization

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What is the purpose of splitting reducers in a state management system?

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To handle different parts of the state independently and improve maintainability

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What is the benefit of combining reducers?

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It allows for a centralized state management and easier state updates

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Characteristic of a pure function:

• It can modify the input parameters
• It depends on external state
• It has no side effects
• It can return different results for the same input

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It has no side effects

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How does immutability contribute to easier debugging?

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By allowing state changes to be tracked over time

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What is a common practice when working with reducers in a large application? Options: Using a single reducer for the entire application, Splitting reducers into smaller, focused functions, Avoiding the use of reducers altogether, Combining all reducers into one large function

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Splitting reducers into smaller, focused functions

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Why is it important to combine reducers in a state management system?

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To ensure that all parts of the state are updated consistently