Firefox:Dive Into Greasemonkey/4.2. Testing whether a Greasemonkey function is available

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您的位置：Dive Into Greasemonkey → 公用模式 → 测试一个Greasemonkey函数是否有效

4.2. 测试一个Greasemonkey函数是否有效

新版的Greasemonkey给用户脚本提供了新函数。如果您打算发布用户脚本，您应该测试下您用的Greasemonkey函数是否存在。

示例：当 GM_xmlhttpRequest 函数无效时提醒用户

if (!GM_xmlhttpRequest) {
    alert('Please upgrade to the latest version of Greasemonkey.');
    return;
}
// more code here that uses GM_xmlhttpRequest

← 在一个域名和它所有的子域名上执行用户脚本

测试一个页面是否包含 HTML 元素 →

Strict Standards: Non-static method Namespace::getUser() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 510

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Notice: Only variable references should be returned by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 138

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Notice: Only variable references should be returned by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 138

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::isTalk() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1367

Strict Standards: Non-static method Namespace::getTalk() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1387

Strict Standards: Non-static method Namespace::isTalk() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 99

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1437

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1439

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1439

Strict Standards: Non-static method Namespace::getImage() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1505

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Notice: Only variable references should be returned by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 138

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Notice: Only variable references should be returned by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 138

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getSpecial() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/languages/Language.php on line 1456

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getSpecial() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/languages/Language.php on line 1456

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getUser() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 775

Strict Standards: Non-static method Namespace::getTalk() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 776

Strict Standards: Non-static method Namespace::getUser() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 776

Strict Standards: Non-static method Namespace::isTalk() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 99

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Notice: Only variable references should be returned by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 138

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Notice: Only variable references should be returned by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 138

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getSpecial() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/languages/Language.php on line 1456

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Title::makeTitle() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 718

Strict Standards: Non-static method Title::makeName() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 138

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Only variables should be assigned by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 718

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 900

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getSpecial() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/languages/Language.php on line 1456

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getSpecial() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/languages/Language.php on line 1456

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getUser() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 510

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Notice: Only variable references should be returned by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 138

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Notice: Only variable references should be returned by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 138

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::isTalk() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1367

Strict Standards: Non-static method Namespace::getTalk() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1387

Strict Standards: Non-static method Namespace::isTalk() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 99

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1437

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1439

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1439

Strict Standards: Non-static method Namespace::getImage() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1505

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Notice: Only variable references should be returned by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 138

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Notice: Only variable references should be returned by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 138

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getSpecial() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/languages/Language.php on line 1456

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getSpecial() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/languages/Language.php on line 1456

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getUser() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1023

Strict Standards: Non-static method Namespace::getTalk() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1024

Strict Standards: Non-static method Namespace::getUser() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1024

Strict Standards: Non-static method Namespace::isTalk() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 99

Strict Standards: Non-static method Namespace::getSpecial() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/languages/Language.php on line 1456

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1450

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Notice: Only variable references should be returned by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 138

Strict Standards: Non-static method Title::newFromText() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

Strict Standards: Non-static method Namespace::getCanonicalIndex() should not be called statically, assuming $this from incompatible context in /home/mozcn/html/mediawiki-1.3.18/includes/Title.php on line 695

Notice: Only variable references should be returned by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Namespace.php on line 138

Strict Standards: Only variables should be passed by reference in /home/mozcn/html/mediawiki-1.3.18/includes/Skin.php on line 1452

取自"http://wiki.mozcn.org/index.php/Firefox:Dive_Into_Greasemonkey/4.2._Testing_whether_a_Greasemonkey_function_is_available"

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