Interesting. Throughout college and the first 4-5 years of my professional career I only knew OO. Then I learned some FP and it made me a much better OO program

Interesting. Throughout college and the first 4-5 years of my professional career I only knew OO. Then I learned some FP and it made me a much better OO programmer. Specifically, immutable data and pure functions are probably the 2 most important concepts that improve the code that I write in OO-focused languages. I couldn't believe that I was without those techniques for so many years.