From b9afb23d12dcae1e09f8d04c72143c5ddaa34aea Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Fri, 16 Jul 2021 16:27:00 -0400 Subject: delete conflicting/orphaned docs (zh-CN) (#1412) * delete conflicting docs (zh-CN) * and redirects * do orphaned as well * fix * remove more orphans * revert orphaned docs that can identify origin * move orphaned docs to current loc * adjust slug path * fix redirect change from rebase Co-authored-by: Irvin --- .../reference/global_objects/map/clear/index.html | 80 ++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 files/zh-cn/web/javascript/reference/global_objects/map/clear/index.html (limited to 'files/zh-cn/web/javascript/reference/global_objects/map/clear') diff --git a/files/zh-cn/web/javascript/reference/global_objects/map/clear/index.html b/files/zh-cn/web/javascript/reference/global_objects/map/clear/index.html new file mode 100644 index 0000000000..799c948b22 --- /dev/null +++ b/files/zh-cn/web/javascript/reference/global_objects/map/clear/index.html @@ -0,0 +1,80 @@ +--- +title: Map.prototype.clear() +slug: Web/JavaScript/Reference/Global_Objects/Map/clear +translation_of: Web/JavaScript/Reference/Global_Objects/Map/clear +tags: + - ECMAScript 2015 + - JavaScript + - Map + - Method + - Prototype + - Reference +browser-compat: javascript.builtins.Map.clear +--- +
{{JSRef}}
+ +

clear()方法会移除Map对象中的所有元素。

+ +
{{EmbedInteractiveExample("pages/js/map-prototype-clear.html")}}
+ + + +

语法

+ +
myMap.clear();
+
+ +

返回值

+ +

{{jsxref("undefined")}}.

+ +

示例

+ +

调用clear方法

+ +
var myMap = new Map();
+myMap.set("bar", "baz");
+myMap.set(1, "foo");
+
+myMap.size;       // 2
+myMap.has("bar"); // true
+
+myMap.clear();
+
+myMap.size;       // 0
+myMap.has("bar")  // false
+
+ +

规范

+ + + + + + + + + + + + + + + + + + + +
SpecificationStatusComment
{{SpecName('ES2015', '#sec-map.prototype.clear', 'Map.prototype.clear')}}{{Spec2('ES2015')}}Initial definition.
{{SpecName('ESDraft', '#sec-map.prototype.clear', 'Map.prototype.clear')}}{{Spec2('ESDraft')}} 
+ +

浏览器兼容

+ + + +

{{Compat("javascript.builtins.Map.clear")}}

+ +

相关链接

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