FIFO
var myQueue = new Array();
myQueue.push("A");
myQueue.push("B");
var ln = myQueue.push("C");
document.writeln("length is " + ln + " and array is " + myQueue + "");
for (var i = 0; i < ln; i++) {
document.writeln(myQueue.shift() + "");
}
document.writeln("length now is " + myQueue.length + "");
myQueue.unshift("L");
myQueue.unshift("J");
ln = newQueue.unshift("S");
document.writeln("length is " + ln + " and array is " + newQueue + "");
for (i = 0; i < ln; i++) {
document.writeln(newQueue.pop() + "");
}
document.writeln("new length is " + newQueue.length );i