Vanilla JS: select an option in a select box by value

gistfile1.txt

// Required for 7000+ option select box used in EC2 UI that has no search

NodeList.prototype.forEach = Array.prototype.forEach
var requiredValue = 'snap-d1d0a88a'
var selectBox = document.querySelector('select')
selectBox.childNodes.forEach(function(element, index){
  if ( element.value === requiredValue ) {
    console.log('Found! Index is ', index)
    selectBox.selectedIndex = index
  }
})