ES6 Map delete()用法及代碼示例

此函數用於從 Map 對象中刪除指定的元素。

用法

的語法delete()下麵給出，其中，key是要從Map中刪除的元素的鍵。

map_name.delete(key)
where,

示例

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

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

   empJobs.delete(andy) //deleting an element
   console.log(empJobs)
</script>

上麵代碼的輸出如下圖所示

{{…} => "Developer"}