From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 14:40:17 -0500 Subject: initial commit --- .../global_objects/set/@@iterator/index.html | 81 ++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 files/zh-cn/web/javascript/reference/global_objects/set/@@iterator/index.html (limited to 'files/zh-cn/web/javascript/reference/global_objects/set/@@iterator') diff --git a/files/zh-cn/web/javascript/reference/global_objects/set/@@iterator/index.html b/files/zh-cn/web/javascript/reference/global_objects/set/@@iterator/index.html new file mode 100644 index 0000000000..fa3f7c61e5 --- /dev/null +++ b/files/zh-cn/web/javascript/reference/global_objects/set/@@iterator/index.html @@ -0,0 +1,81 @@ +--- +title: 'Set.prototype[@@iterator]()' +slug: Web/JavaScript/Reference/Global_Objects/Set/@@iterator +tags: + - ECMAScript2015 + - Iterator + - JavaScript + - Method + - set +translation_of: Web/JavaScript/Reference/Global_Objects/Set/@@iterator +--- +
{{JSRef}}
+ +

@@iterator 属性的初始值和 {{jsxref("Set.prototype.values()", "values")}} 属性的初始值是同一个函数。

+ +
{{EmbedInteractiveExample("pages/js/set-prototype-@@iterator.html")}}
+ + + +

Syntax

+ +
mySet[Symbol.iterator]
+ +

Return value

+ +

返回 Set iterator 函数,默认值是 {{jsxref("Set.prototype.values()", "values()")}} 函数。

+ +

Examples

+ +

Using [@@iterator]()

+ +
const mySet = new Set();
+mySet.add('0');
+mySet.add(1);
+mySet.add({});
+
+const setIter = mySet[Symbol.iterator]();
+
+console.log(setIter.next().value); // "0"
+console.log(setIter.next().value); // 1
+console.log(setIter.next().value); // Object
+
+ +

Using [@@iterator]() with for..of

+ +
const mySet = new Set();
+mySet.add('0');
+mySet.add(1);
+mySet.add({});
+
+for (const v of mySet) {
+  console.log(v);
+}
+
+ +

Specifications

+ + + + + + + + + + +
Specification
{{SpecName('ESDraft', '#sec-set.prototype-@@iterator', 'Set.prototype[@@iterator]')}}
+ +

Browser compatibility

+ + + +

{{Compat("javascript.builtins.Set.@@iterator")}}

+ +

See also

+ + -- cgit v1.2.3-54-g00ecf