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什么是窗口实体?

dom javascript

nickf · 技术社区 · 14 年前

我发现我编写的某些代码中的错误源于 window 对象调用 Entity (显然可以通过 window.Entity ). 从那以后,我一直在解决这个问题,不把我的东西叫做“实体”,但我想知道那到底是什么东西?

1 回复 | 直到 14 年前

meder omuraliev 14 年前

我相信它只是实体的构造函数,可以像window.Element那样使用。用户似乎无法定义新的实体或元素,只有在呈现页面时浏览器本身。

http://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-527DCFF2

window.Entity.prototype.__proto__ 包含以下内容:

ATTRIBUTE_NODE: 2
CDATA_SECTION_NODE: 4
COMMENT_NODE: 8
DOCUMENT_FRAGMENT_NODE: 11
DOCUMENT_NODE: 9
DOCUMENT_POSITION_CONTAINED_BY: 16
DOCUMENT_POSITION_CONTAINS: 8
DOCUMENT_POSITION_DISCONNECTED: 1
DOCUMENT_POSITION_FOLLOWING: 4
DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC: 32
DOCUMENT_POSITION_PRECEDING: 2
DOCUMENT_TYPE_NODE: 10
ELEMENT_NODE: 1
ENTITY_NODE: 6
ENTITY_REFERENCE_NODE: 5
NOTATION_NODE: 12
PROCESSING_INSTRUCTION_NODE: 7
TEXT_NODE: 3
addEventListener: function addEventListener() { [native code] }
appendChild: function appendChild() { [native code] }
cloneNode: function cloneNode() { [native code] }
compareDocumentPosition: function compareDocumentPosition() { [native code] }
constructor: function Node() { [native code] }
dispatchEvent: function dispatchEvent() { [native code] }
hasAttributes: function hasAttributes() { [native code] }
hasChildNodes: function hasChildNodes() { [native code] }
insertBefore: function insertBefore() { [native code] }
isDefaultNamespace: function isDefaultNamespace() { [native code] }
isEqualNode: function isEqualNode() { [native code] }
isSameNode: function isSameNode() { [native code] }
isSupported: function isSupported() { [native code] }
lookupNamespaceURI: function lookupNamespaceURI() { [native code] }
lookupPrefix: function lookupPrefix() { [native code] }
normalize: function normalize() { [native code] }
removeChild: function removeChild() { [native code] }
removeEventListener: function removeEventListener() { [native code] }
replaceChild: function replaceChild() { [native code] }
__proto__: Object

至于实体的类型,只要看看HTML DTD,你就会看到一堆定义的实体: http://www.w3.org/TR/html4/sgml/dtd.html

实体背景信息: