ES6-地圖方法 entries()

此函式返回一個迭代器，其中包含 Map 中每個元素的鍵值對。

語法

entries() 的語法如下所示 −

map_name.entries()

示例

<script>
   let andy = {ename:"Andrel"},
      varun = {ename:"Varun"},
      prijin = {ename:"Prijin"}

   let empJobs = new Map([
   [andy,'Software Architect'],
   [varun,'Developer']]
   );

   for(let row of empJobs.entries()){
      console.log("key is ",row[0])
      console.log("value is ",row[1])
   }
</script>

以上程式碼的輸出如下所示 −

key is {ename: "Andrel"}
value is Software Architect
key is {ename: "Varun"}
value is Developer