StaticRange
The DOM StaticRange
interface extends AbstractRange
to provide a method to specify a range of content in the DOM whose contents don't update to reflect changes which occur within the DOM tree.
This interface offers the same set of properties and methods as AbstractRange
.
AbstractRange
and StaticRange
are not available from web workers.
Constructor
StaticRange()
-
Creates a new
StaticRange
object given theStaticRangeInit
dictionary specifying the default values for its properties.
Instance properties
The properties below are inherited from its parent interface, AbstractRange
.
StaticRange.collapsed
Read only-
Returns a Boolean value which is
true
if the range's start and end positions are the same, resulting in a range of length 0. StaticRange.endContainer
Read only-
Returns the DOM
Node
which contains the ending point of the range. The offset into the node at which the end position is located is indicated byendOffset
. StaticRange.endOffset
Read only-
Returns an integer value indicating the offset into the node given by
endContainer
at which the last character of the range is found. StaticRange.startContainer
Read only-
Returns the DOM
Node
which contains the starting point of the range (which is in turn identified bystartOffset
. StaticRange.startOffset
Read only-
Returns an integer value indicating the offset into the node specified by
startContainer
at which the first character of the range is located.
Usage notes
A DOM range specifies a span of content in a document, potentially beginning inside one node (or element) and ending inside another one. Unlike a Range
, a StaticRange
represents a range which is fixed in time; it does not change to try to keep the same content within it as the document changes. If any changes are made to the DOM, the actual data contained within the range specified by a StaticRange
may change. This lets the user agent avoid a lot of work that is unnecessary if the web app or site doesn't need a live-updating range.
Specifications
Specification |
---|
DOM Standard # interface-staticrange |
Browser compatibility
BCD tables only load in the browser
See also
- Live updating range of content within the DOM:
Range
AbstractRange
, the abstract interface from which all ranges are derived