From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 14:40:17 -0500 Subject: initial commit --- .../api/navigator/mozislocallyavailable/index.html | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 files/zh-cn/web/api/navigator/mozislocallyavailable/index.html (limited to 'files/zh-cn/web/api/navigator/mozislocallyavailable/index.html') diff --git a/files/zh-cn/web/api/navigator/mozislocallyavailable/index.html b/files/zh-cn/web/api/navigator/mozislocallyavailable/index.html new file mode 100644 index 0000000000..19bccd5ef2 --- /dev/null +++ b/files/zh-cn/web/api/navigator/mozislocallyavailable/index.html @@ -0,0 +1,42 @@ +--- +title: Navigator.mozIsLocallyAvailable() +slug: Web/API/Navigator/mozIsLocallyAvailable +translation_of: Web/API/Navigator/mozIsLocallyAvailable +--- +

{{APIRef("HTML DOM")}}{{Non-standard_header}}

+ +

概述

+ +

查询某个URI上的资源是否是本地可用的.

+ +

语法

+ +
window.navigator.mozIsLocallyAvailable(uri, ifOffline);
+
+ + + +

例子

+ +
var available = navigator.mozIsLocallyAvailable("http:www.example.com/my-image-file.png", true);
+if (available) {
+  /* 该离线资源可用 */
+} else {
+  alert("离线资源不可用,必须联网.");
+}
+
+ +

备注

+ +

{{ Note("查询的URI和当前页面的URI不同域的话,会抛出安全异常.") }}

+ +

规范

+ +

无规范; 这里有一些可用信息: 将资源标记为离线可用.

+ +

 

+ +

{{ languages( { "fr": "fr/DOM/window.navigator.isLocallyAvailable", "en": "en/DOM/window.navigator.isLocallyAvailable", "ja": "ja/DOM/window.navigator.mozIsLocallyAvailable" } ) }}

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