var linkedList = require("./linkedList.js");
var stackQueue = function(){
this.list = new linkedList();
this.length = 0;
};
stackQueue.prototype.push = function(data) {
this.list.add(data);
this.length++;
};
stackQueue.prototype.pop = function() {
Iif(this.isEmpty()) throw "The stack/queue is empty"
var results = this.peek()
this.list.remove(results);
this.length--;
return results;
};
stackQueue.prototype.isEmpty = function() {
return this.length === 0;
}
stackQueue.prototype.clear = function() {
this.list = new linkedList();
this.length = 0;
}
stackQueue.prototype.peek = function() {
return this.isEmpty() ? null : this.getNext();
}
module.exports = stackQueue; |