Createvar queue = new PriorityQueue();Creates a priority queue Queuequeue.queue(value);Inserts a new value in the queue Lengthvar length = queue.length;Returns the number of elements in the queue Peekvar firstItem = queue.peek();Returns the smallest item in the queue and leaves the queue ...
enqueue(ele, priority) { letqueueEle = { ele, priority }; if(this.isEmpty) { this.items.push(queueEle); }else{ letpreIndex =this.items.findIndex(item => queueEle.priority < item.priority); if(preIndex > -1) { this.items.splice(preIndex, 0, queueEle); }else{ this.items.push(...
functionPriorityQueue(){ functionQueueElement(element,priority){ this.element=element this.priority=priority } //封装属性 this.items=[] //实现插入方法 PriorityQueue.prototype.enqueue=function(element,priority){ // 1.创建PriorityQueue对象 varqueueElement=newQueueElement(element,priority) //2.判断队列是否...
队列(Queue,发音为 [kjuː] ),是一种基于先进先出(First In First Out,简称 FIFO)的数据结构,是一种受限的线性表,只能在一端(前端,front)进行插入,另一端(后端,rear)进行删除操作。 封装队列结构 js 中没有现成的队列结构,但我们可以基于数组自己封装一个构造函数 Queue,并实现队列的入队、出队、查看队...
function PriorityQueue() { //声明一个items用于保存元素 var items = []; //创建一个QueueElement类,用于保存元素和其在队列中的优先级(priority越小,优先级越高) function QueueElement(element,priority) { this.element = element; this.priority = priority; } this.enqueue = function(element,priority) ...
Pass an options object after the job argument in the Queue.add() method. Job options properties are: priority: number - Optional priority value. Ranges from 1 (highest priority) to MAX_INT (lowest priority). Note that using priorities has a slight impact on performance, so use them with ...
let overqueue = [] //定义一个数组(队列) readyqueue = [One, Two, Three, Four, Five] //正在进行的进程 let runProgress = new PCB() // 就绪队列优先权排序 /** * Sort的排序是按照队列各个元素的Priority(也就是优先权排队的) * 每次排完以后,优先权最大的在数组后面,这样每次运行主程序只需要...
For convenience, priority-async-queue referred to as paq.1. addTaskCreate a task and join in the paq queue.paq.addTask([options, ]callback);options is an optional object that contains the following attributes:{ id: undefined, // task id priority: 'normal', // task priority, such as:...
queue with priority q.push({name: 'foo3'}, 3, function(err) { console.log('Finished processing foo'); }); q.push({name: 'bar2'}, 2, function (err) { console.log('Finished processing bar'); }); // add some items to the queue (batch-wise) which will have same priority q....
源码放在lib/internal/priority_queue.js中,一些博文也直接翻译为优先队列,它们是抽象结构和具体实现之间的关系,特性是一致的。二叉堆是一棵有序的完全二叉树,又以节点与其后裔节点的关系分为最大堆和最小堆。完全二叉树的特点使其可以很容易地转化为一维数组来存储,且不需要二外记录其父子关系,索引为i的节点的左右...