How does functional programming influence your coding style? [closed]

Question

The most of programmers nowadays use OOPS concepts for software development.

But some of them have exposure to functional programming too.

How does functional programming influence your coding style?

Answer 1

Main use has been passing functions into higher-order functions like filter and map (Where and Select in .Net) This is really the biggest impact, allowing you to write things like set operations just the once, then things that act on or modify sets.

So things like

var SquareOfEvenIntegers = MyListOfInts
    .Where(i=>even(i))
    .Select(i=>i*i);

instead of

List<int> SquareOfEvenIntegers = new List<int>()
foreach(int i in MyListOfInts)
{
    if (even(i))
    {
        SquareOfEvenIntegers.Add(i*i);            
    }
}

Answer 2

I find it a lot easier to write multi threaded code now.

I tend to have less class level variables than before.

I also tend to have interfaces that are functionally independent ... again that has a huge gain when it comes to multi threading as it can greatly reduce the amount of object locking required provided your threads are also functionally independant.

I also tend to have nightmares about closing braces chasing me.