I get "const", but is "let" really that big a deal? Are your functions so deeply...

Aldo_MX · on Oct 4, 2016

Sometimes you just need to do something the old way:

  let element = document.getElementById('some-element');
  while (element) {
    // do something
    element = element.parentElement;
  }

let doesn't get in the way with behavior such as hoisting, and the code will break if you redeclare a variable.

Roboprog · on Oct 4, 2016

How does var/hoisting get in the way of that, or at least, that particular, construct?

FWIW, that would also be a nice "for" loop :-)

    var el
    for (
        el = document.getElement... ;
        el ;
        el = el.parentElement
    ) {
        // do something
    }