interview

home / developersection / interviews / what are func, action, and predicate delegates? when do you use them?

Ask Question

What are Func, Action, and Predicate delegates? When do you use them?

ICSM Computer 146 22-Jun-2025
c# c# 
Updated on 22-Jun-2025
ICSM Computer

IT-Hardware & Networking

Ravi Vishwakarma is a dedicated Software Developer with a passion for crafting efficient and innovative solutions. With a keen eye for detail and years of experience, he excels in developing robust software systems that meet client needs. His expertise spans across multiple programming languages and technologies, making him a valuable asset in any software development project.

Follow
Can you answer this question?
Answer

1 Answers

ICSM Computer

ICSM Computer

22-Jun-2025

What are Func<>, Action<>, and Predicate<> delegates? When do you use them?


These are built-in generic delegates:

  • Func<T, TResult>: Takes parameters, returns a value.
  • Action<T>: Takes parameters, returns void.
  • Predicate<T>: Takes one input, returns bool.
Func<int, int, int> add = (a, b) => a + b;
Action<string> print = msg => Console.WriteLine(msg);
Predicate<int> isEven = x => x % 2 == 0;

Use them with LINQ, events, callbacks, or to make APIs more flexible.

MindStick Training
MindStick Training

Liked By

We use cookies to ensure you have the best browsing experience on our website. By using our site, you acknowledge that you have read and understood our Cookie Policy & Privacy Policy