Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Set/entries below:

Set.prototype.entries() - JavaScript | MDN

Baseline Widely available

Set 实例的 entries() 方法返回一个新的集合迭代器对象，该对象包含了此集合中每个元素的 [value, value] 数组，按插入顺序排列。Set 对象没有类似于 Map 对象中的 key。因此，为了保持 API 与 Map 对象类似，这里每个 entry 的 key 和 value 都相同，所以返回的数组为 [value, value]。

const set1 = new Set();
set1.add(42);
set1.add("forty two");

const iterator1 = set1.entries();

for (const entry of iterator1) {
  console.log(entry);
  // Expected output: Array [42, 42]
  // Expected output: Array ["forty two", "forty two"]
}

无。

一个新的可迭代迭代器对象。

const mySet = new Set();
mySet.add("foobar");
mySet.add(1);
mySet.add("baz");

const setIter = mySet.entries();

console.log(setIter.next().value); // ["foobar", "foobar"]
console.log(setIter.next().value); // [1, 1]
console.log(setIter.next().value); // ["baz", "baz"]

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4