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/**
* File: hash_map.js
* Created Time: 2022-12-26
* Author: Justin (xiefahit@gmail.com)
*/
/* Driver Code */
/* 初始化雜湊表 */
const map = new Map ( ) ;
/* 新增操作 */
// 在雜湊表中新增鍵值對 (key, value)
map . set ( 12836 , '小哈' ) ;
map . set ( 15937 , '小囉' ) ;
map . set ( 16750 , '小算' ) ;
map . set ( 13276 , '小法' ) ;
map . set ( 10583 , '小鴨' ) ;
console . info ( '\n新增完成後， ) ;
console . info ( map ) ;
/* 查詢操作 */
// 向雜湊表中輸入鍵 key ，得到值 value
let name = map . get ( 15937 ) ;
console . info ( '\n輸入學號 15937 ，查詢到姓名 ' + name ) ;
/* 刪除操作 */
// 在雜湊表中刪除鍵值對 (key, value)
map . delete ( 10583 ) ;
console . info ( '\n刪除 10583 後，雜湊表為\nKey -> Value' ) ;
console . info ( map ) ;
/* 走訪雜湊表 */
console . info ( '\n走訪鍵值對 Key->Value' ) ;
for ( const [ k , v ] of map . entries ( ) ) {
console . info ( k + ' -> ' + v ) ;
}
console . info ( '\n單獨走訪鍵 Key' ) ;
for ( const k of map . keys ( ) ) {
console . info ( k ) ;
}
console . info ( '\n單獨走訪值 Value' ) ;
for ( const v of map . values ( ) ) {
console . info ( v ) ;
}
