shell.js
function handleKeyUp(shell, ev) {
  handleEvent(shell, ev)
  var kc = physicalKeyCode(ev.keyCode || ev.char || ev.which || ev.charCode)
  if(kc >= 0) {
    setKeyState(shell, kc, false)
  }
}
function handleKeyUp(shell, ev) {
  handleEvent(shell, ev)
  var kc = physicalKeyCode(ev.keyCode || ev.char || ev.which || ev.charCode)
  if(kc >= 0) {
    setKeyState(shell, kc, false)
  }
}
function handleKeyUp ( shell , ev ) { handleEvent ( shell , ev ) var kc = physicalKeyCode ( ev . keyCode || ev . char || ev . which || ev . charCode ) if ( kc >= 0 ) { setKeyState ( shell , kc , false ) } }
Set key up
Set key up