garthk

wait4eth1() {
        CNT=0
        until ip a show eth1 | grep -q UP
        do
                [ $((CNT++)) -gt 60 ] && break || sleep 1
        done
        sleep 1
}
wait4eth1

Gaubee

  // We use setImmediate or postMessage for our future callback.
  var setImmediate = window.msSetImmediate;

  // Use post message to emulate setImmediate.
  if (!setImmediate) {
    var setImmediateQueue = [];
    var sentinel = String(Math.random());
    window.addEventListener('message', function(e) {
      if (e.data === sentinel) {
        var queue = setImmediateQueue;