function queue(){ function constructor() { this.items = []; } queue.prototype.enqueue = function(element) { this.items.push(element); }; queue.prototype.dequeue = function() { return this.items.shift(); }; queue.prototype.indexOf = function(element) { return this.items.indexOf(element); }; queue.prototype.set = function(element, index) { if (index < 0 || index >= this.items.length) return; this.items[index] = element; }; queue.prototype.peek = function() { return this.items[0]; }; queue.prototype.isEmpty = function() { return this.items.length === 0; }; } let queue1 = new queue(); queue1.enqueue('A'); queue1.enqueue('B'); queue1.enqueue('C'); console.log(queue1.items); let foundA = queue.indexOf('A'); console.log(foundA); queue.set('x', 1); console.log(queue.items); queue.dequeue(); console.log(queue.items);请帮我修改该代码
时间: 2024-03-22 20:42:11 浏览: 16
好的,我修改了一下代码,注释中有说明:
```javascript
function Queue() { // 构造函数名首字母应该大写
this.items = [];
}
Queue.prototype.enqueue = function(element) {
this.items.push(element);
};
Queue.prototype.dequeue = function() {
return this.items.shift();
};
Queue.prototype.indexOf = function(element) {
return this.items.indexOf(element);
};
Queue.prototype.set = function(element, index) {
if (index < 0 || index >= this.items.length) return;
this.items[index] = element;
};
Queue.prototype.peek = function() {
return this.items[0];
};
Queue.prototype.isEmpty = function() {
return this.items.length === 0;
};
let queue1 = new Queue(); // 构造函数名应该首字母大写
queue1.enqueue('A');
queue1.enqueue('B');
queue1.enqueue('C');
console.log(queue1.items);
let foundA = queue1.indexOf('A'); // 应该是 queue1 而不是 queue
console.log(foundA);
queue1.set('x', 1); // 应该是 queue1 而不是 queue
console.log(queue1.items);
queue1.dequeue(); // 应该是 queue1 而不是 queue
console.log(queue1.items);
```
希望对你有帮助。