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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The Selection.collapse() method collapses the current selection to a single point. The document is not modified. If the content is focused and editable, the caret will blink there.

Syntax

sel.collapse(parentNode, offset);

Parameters

parentNode
The caret location will be within this node.
offset
The offset in parentNode to which the selection will be collapsed.

Examples

/* Place the caret at the beginning of an HTML document's body. */
var body = document.getElementsByTagName("body")[0];
window.getSelection().collapse(body,0);

Specifications

Specification Status Comment
Selection API
The definition of 'Selection.collapse()' in that specification.
Working Draft  
HTML Editing APIs
The definition of 'Selection.collapse()' in that specification.
Editor's Draft Initial definition

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support ? (Yes) 9.0 ? ?
Feature Android Firefox Mobile (Gecko) Firefox OS IE Phone Opera Mobile Safari Mobile
Basic support ? (Yes) 1.0 ? ? ?

See also

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 最終更新者: Sebastianz,