Text

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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
Recommendation Added the isElementContentWhitespace and wholeText properties.
Added the replaceWholeText() method.
Document Object Model (DOM) Level 2 Core Specification
Text
Recommendation No change from Document Object Model (DOM) Level 1 Specification.
Document Object Model (DOM) Level 1 Specification
Text
Recommendation Initial definition.

浏览器兼容性

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.

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