Text.splitText()
The Text.splitText()
method breaks the Text
node into two nodes at the specified offset, keeping both nodes in the tree as siblings.
After the split, the current node contains all the content up to the specified offset point, and a newly created node of the same type contains the remaining text. The newly created node is returned to the caller. If the original node had a parent, the new node is inserted as the next sibling of the original node. If the offset is equal to the length of the original node, the newly created node has no data.
Separated text nodes can be concatenated using the Node.normalize()
method.
A DOMException
with a value of INDEX_SIZE_ERR
is thrown if the specified offset is negative or is greater than the number of 16-bit units in the node's text; a DOMException
with a value of NO_MODIFICATION_ALLOWED_ERR
is thrown if the node is read only.
Syntax
replacementNode = textnode.splitText(offset)
Example
In this example, a <p>
text node will be split into two text nodes and a <span>
inserted between them.
<body> <p id="p">foobar</p> <script type="text/javascript"> var p = document.getElementById('p'); var textnode = p.firstChild; // split between foo and bar var replacementNode = textnode.splitText(3); // creating a span with ' span contents ' var span = document.createElement('span'); span.appendChild(document.createTextNode(' span contents ')); // adding the span before 'bar' p.insertBefore(span, replacementNode); // the result is <p id="p">foo<span> span contents </span>bar</p> </script> </body>
Specifications
Specification | Status | Comment |
---|---|---|
DOM The definition of 'Text.splitText' in that specification. |
Living Standard | No change from Document Object Model (DOM) Level 3 Core Specification. |
Document Object Model (DOM) Level 3 Core Specification The definition of 'Text.splitText' in that specification. |
Recommendation | No change from Document Object Model (DOM) Level 2 Core Specification. |
Document Object Model (DOM) Level 2 Core Specification The definition of 'Text.splitText' in that specification. |
Recommendation | No change from Document Object Model (DOM) Level 1 Specification. |
Document Object Model (DOM) Level 1 Specification The definition of 'Text.splitText' in that specification. |
Recommendation | Initial definition. |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | 1.0 [1] | 1.0 (1.7 or earlier) | (Yes) | (Yes) [1] | (Yes) [2] |
Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|
Basic support | (Yes) [1] | 1.0 (1.0) | (Yes) | (Yes) [1] | (Yes) [2] |
[1] Before Chrome 30 and Opera 17, splitText()
argument was not mandatory, as required by the specification and implemented by IE and Gecko-based browsers.
[2] The argument is not mandatory, though required by the spec.
See also
- The
Text
interface it belongs to. - The opposite method:
Node.normalize
.
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/text/splittext