Learn about closures which are self contained blocks of code that you can store and then call on later.
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/4190-intermediate-swift-2/lessons/5
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/4190-intermediate-swift-2/lessons/5
Thank you very much for the tutorial. 
Now Iām confusing about the difference between functions and closures.
Is there any guideline explaining how to maximise the power of closure? such as best practices??
Many thanks in advance.