Access last element of a TypeScript array

Question

Is there a notation to access the last element of an array in TypeScript? In Ruby I can say: array[-1]. Is there something similar?

Answer 1

If you don't need the array afterwards, you could use

array.pop()

But that removes the element from the array!

The pop returns T | undefined so you need to take care of that in your implementation.

If you are sure there will be always a value you can use non-null assertion operator (!):

     var poped = array.pop()
     array.push(poped!);