This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The Selection.rangeCount
read-only property returns the number of ranges in the selection.
Before the user has clicked a freshly loaded page, the rangeCount
is 0
. After the user clicks on the page, rangeCount
is 1
, even if no selection is visible.
A user can normally only select one range at a time, so the rangeCount
will usually be 1
. Scripting can be used to make the selection contain more than one range.
Gecko browsers allow multiple selections across table cells. Firefox allows to select multiple ranges in the document by using Ctrl+click (unless the click within an element with display: table-cell).
Syntax
value = sel.rangeCount
Example
The following example will show the rangeCount
every second. Select text in the browser to see it change.
HTML
<table> <tr><td>a.1<td>a.2 <tr><td>b.1<td>b.2 <tr><td>c.1<td>c.2
JavaScript
window.setInterval(function () { console.log(window.getSelection().rangeCount); }, 1000);
Result
Open your console to see how many ranges are in the selection. In Gecko browsers, you can select multiple ranges across table cells by holding down Ctrl while dragging with the mouse.
Specifications
Specification | Status | Comment |
---|---|---|
Selection API The definition of 'Selection.rangeCount' in that specification. |
Working Draft | Current |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
rangeCount | Chrome Full support Yes | Edge Full support 12 | Firefox Full support Yes | IE Full support Yes | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support Yes | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
See also
Selection
, the interface it belongs to.