What are the best practices for deferred execution in programming?

What are the best practices for deferred execution in programming?

Deferred execution allows you to delay the evaluation of an expression until its value is needed. Best practices include using lazy loading, optimizing resource usage, and ensuring thread safety.

Can you explain lazy loading and how it relates to deferred execution?

Lazy loading is a design pattern that delays the initialization of an object until the point at which it is needed. This is a key aspect of deferred execution, as it helps improve performance and resource management.

What are some common pitfalls to avoid with deferred execution?

Common pitfalls include unintended side effects, increased complexity in debugging, and potential memory leaks if not managed properly.

How can I implement deferred execution in my code?

You can implement deferred execution using constructs like IEnumerable<T> in C#, or using Promises in JavaScript. It often involves creating functions that return values only when called.