📜  地图功能演示 - Javascript 代码示例

📅  最后修改于: 2022-03-11 15:01:36.998000             🧑  作者: Mango

代码示例1
const array = [2, 5, 9];
let squares = array.map((num) => num * num);

console.log(array); // [2, 5, 9]
console.log(squares); // [4, 25, 81]