Iterate an array as a pair (current, next) in JavaScript

Question

In the question Iterate a list as pair (current, next) in Python, the OP is interested in iterating a Python list as a series of current, next pairs. I have th

Answer 1

Simply use forEach with all its parameters for this:

yourArray.forEach((current, idx, self) => {
  if (let next = self[idx + 1]) {
    //your code here
  }
})