Text - Web API 接口参考 编辑

The Text interface represents the textual content of Element or Attr.  If an element has no markup within its content, it has a single child implementing Text that contains the element's text.  However, if the element contains markup, it is parsed into information items and Text nodes that form its children.

New documents have a single Text node for each block of text. Over time, more Text nodes may be created as the document's content changes.  The Node.normalize() method merges adjacent Text objects back into a single node for each block of text.

属性

Text.isElementContentWhitespace 只读

Returns a Boolean flag indicatingwhether or not the text node contains only whitespace.

Text.wholeText 只读

Returns a DOMString containing the text of all Text nodes logically adjacent to this Node, concatenated in document order.

构造函数

Text()

Returns a Text node with the parameter as its textual content.

方法

Text.replaceWholeText

Replaces the text of the current node and all logically adjacent nodes with the specified text.

Text.splitText

Breaks the node into two nodes at a specified offset.

规范

Specification	Status	Comment
DOM Text	Living Standard	Removed the isElementContentWhitespace property. Removed the replaceWholeText() method. Added the Text() constructor.
Document Object Model (DOM) Level 3 Core Specification Text	Obsolete	Added the isElementContentWhitespace and wholeText properties. Added the replaceWholeText() method.
Document Object Model (DOM) Level 2 Core Specification Text	Obsolete	No change from Document Object Model (DOM) Level 1 Specification.
Document Object Model (DOM) Level 1 Specification Text	Obsolete	Initial definition.

浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

• Desktop
• Mobile

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	1.0 [3]	1.0 (1.7 or earlier)	(Yes)	(Yes) [3]	(Yes) [4]
wholeText	1.0	3.5 (1.9.1)	(Yes)	(Yes)	(Yes)
isElementContentWhitespace	未实现	(Yes) Removed in 10 (10)	未实现	未实现	未实现
replaceWholeText	(Yes) [1] [2]	3.5 (1.9.1) Removed in 10 (10)	(Yes)	(Yes) [1] [2]	(Yes) [4]
Text() constructor	28.0	24.0 (24.0)	未实现	15.0	未实现

Feature	Android	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	(Yes) [3]	1.0 (1.0)	(Yes)	(Yes) [3]	(Yes) [4]
wholeText	(Yes)	1.0 (1.9.1)	(Yes)	(Yes)	(Yes)
isElementContentWhitespace	未实现	(Yes) Removed in 10.0 (10)	未实现	未实现	未实现
replaceWholeText	(Yes) [1] [2]	1.0 (1.9.1) Removed in 10.0 (10)	(Yes)	(Yes) [1] [2]	(Yes) [4]
Text() constructor	(Yes)	24.0 (24.0)	未实现	15.0	未实现

[1] Chromium is currently considering dropping its support.

[2] Before Chrome 30 and Opera 17, the argument wasn't mandatory, like required by the specification.

[3] Before Chrome 30 and Opera 17, splitText() argument was not mandatory, as required by the specification and implemented by IE and Gecko-based browsers.

[4] The argument is not mandatory, though required by the spec.

相关链接

• The DOM interfaces index.