From 59a3c2ab5476a2ea617f780764c4b3bf3c1d3d24 Mon Sep 17 00:00:00 2001 From: MDN Date: Wed, 5 May 2021 00:31:00 +0000 Subject: [CRON] sync translated content --- .../global_objects/weakset/clear/index.html | 95 ++++++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 files/zh-cn/orphaned/web/javascript/reference/global_objects/weakset/clear/index.html (limited to 'files/zh-cn/orphaned') diff --git a/files/zh-cn/orphaned/web/javascript/reference/global_objects/weakset/clear/index.html b/files/zh-cn/orphaned/web/javascript/reference/global_objects/weakset/clear/index.html new file mode 100644 index 0000000000..de4ef6da94 --- /dev/null +++ b/files/zh-cn/orphaned/web/javascript/reference/global_objects/weakset/clear/index.html @@ -0,0 +1,95 @@ +--- +title: WeakSet.prototype.clear() +slug: orphaned/Web/JavaScript/Reference/Global_Objects/WeakSet/clear +tags: + - JavaScript + - Method + - WeakSet + - 废弃 +translation_of: Web/JavaScript/Reference/Global_Objects/WeakSet/clear +original_slug: Web/JavaScript/Reference/Global_Objects/WeakSet/clear +--- +
{{JSRef}} {{obsolete_header}}
+ +

clear() 方法用于删除 WeakSet 对象的所有元素,但是已经不是 ECMAScript 的一部分了。

+ +

语法

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ws.clear();
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示例

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使用 clear方法

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var ws = new WeakSet();
+
+ws.add(window);
+ws.has(window);  // true
+
+ws.clear();
+
+ws.has(window); // false
+
+ +

规范

+ +

没有规范或草案。该方法原本计划包括在 ECMAScript 6,但是在草案 revision 28 (October 14, 2014) 被抛弃了。浏览器原先的实现不久后也被移除了,它从来不是标准的一分子。

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浏览器支持

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{{CompatibilityTable}}

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+ + + + + + + + + + + + + + + + + + + +
FeatureChromeFirefox (Gecko)Internet ExplorerOperaSafari
Basic support36{{CompatNo}} [1]{{CompatNo}}23{{CompatNo}}
+
+ +
+ + + + + + + + + + + + + + + + + + + +
FeatureAndroidFirefox Mobile (Gecko)IE MobileOpera MobileSafari Mobile
Basic support{{CompatNo}}{{CompatNo}} [1]{{CompatNo}}{{CompatNo}}{{CompatNo}}
+
+ +

[1] Added to Firefox in version 34, but removed in version 46. See {{bug(1101817)}}.

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相关

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