HashTable.prototype.isEmpty=function(){ return this.count==0 } //获取哈希表中的个数 HashTable.prototype.size=function(){ return this.count } //哈希表的扩容 HashTable.prototype.resize=function(newLimit){ //1.保存旧的数组内容 va
functionhash(string,max) {var hash = 0;for(var i = 0; i < string.length; i++) {hash += string.charCodeAt(i);}returnhash %max;}functionHashTable() {let storage = [];const storageLimit = 4;this.add=function(key, value) {varindex= hash(key, storageLimit);if (storage[index] =...
import java.util.HashMap; public class Test { public static void main(String[] args) { HashMap<String ,Integer> map = new HashMap<>(); map.put("徐冰", 100); map.put("萤火", 99); System.out.println(map.isEmpty()); map.clear(); System.out.println(map.isEmpty()); } } 1. ...
get:用键名查找对应的键值并返回 clear:清空字典 size:返回字典所包含键的数量 isEmpty:在 size 等于零时返回 true keys:返回字典中所有键名组成的数组 values:返回字典中所有键值组成的数组 keyValues:返回所有键值对 forEach:迭代所有的键值对 hasKey 方法 该方法的作用是检测一个键是否在字典中。因为这个方法会...
一个简易版本的Hash Table的Javascript实现: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 function hash(string, max) { var hash = 0; for (var i = 0; i < string.length; i++) { hash += string.charCodeAt(i); } return hash % max; } function HashTable() { let storage = [];...
isEmpty:判断队列是否为空 size:获取队列中元素的个数 Javascript中的Array已经具备了Queue的一些特性,所以我们可以借助Array实现一个Queue类型: functionQueue(){varcollection = []; this.print =function(){console.log(collection);} this.enqueue =function(element){...
接下来我们用js实现hashmap, hashmap是一种键值对的数据结构。意味着你可以通过key快速找到你所需要查找的值。我使用数组加上LinkedList来实现hashmap,这种方式也被称为解决hashcode冲突的分离链接法。hashmap通常具备以下几种方法:put,get,remove。put是写入和修改数据,在put数据时,首先获取key的hashcode,作为数组的索...
// - slow, backing storage is a HashTable with numbers as keys. class JSArray: public JSObject { public: // [length]: The length property. DECL_ACCESSORS(length, Object) // 。。。此处省略实现 // Number of element slots to pre-allocate for an empty array. ...
In this tutorial, the learning speed is your choice. Everything is up to you. If you are struggling, take a break, or re-read the material. Alwaysmake sure you understandallthe "Try-it-Yourself" examples. The only way to become a clever programmer is to: Practice. Practice. Practice....
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