Map.prototype.entries()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

Map 实例的 entries() 方法返回一个新的 地图迭代器 对象，其中包含此映射中按插入顺序排列的每个元素的 [key, value] 对。

¥The entries() method of Map instances returns a new map iterator object that contains the [key, value] pairs for each element in this map in insertion order.

Try it

语法

¥Syntax

js
entries()

参数

¥Parameters

没有任何。

¥None.

返回值

¥Return value

新的 可迭代的迭代器对象。

¥A new iterable iterator object.

示例

¥Examples

使用条目()

¥Using entries()

js
const myMap = new Map();
myMap.set("0", "foo");
myMap.set(1, "bar");
myMap.set({}, "baz");

const mapIter = myMap.entries();

console.log(mapIter.next().value); // ["0", "foo"]
console.log(mapIter.next().value); // [1, "bar"]
console.log(mapIter.next().value); // [Object, "baz"]

规范

Specification
ECMAScript Language Specification
# sec-map.prototype.entries

¥Specifications

浏览器兼容性

BCD tables only load in the browser

¥Browser compatibility

也可以看看

¥See also