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 1 range.
Gecko browsers allow multiple selections across table cells.
value = sel.rangeCount
The following example will show the rangeCount every second. Select text in the browser to see it change.
Open the 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. <table> <tr><td>a.1<td>a.2 <tr><td>b.1<td>b.2
window.setInterval(function () { console.log(window.getSelection().rangeCount); }, 1000);
Specification | Status | Comment |
---|---|---|
HTML Editing APIs The definition of 'Selection.rangeCount' in that specification. | Editor's Draft | Initial definition |
Selection API The definition of 'Selection.rangeCount' in that specification. | Working Draft | Current |
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | ? |
Feature | Android | Edge | Firefox Mobile (Gecko) | Firefox OS | IE Phone | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|
Basic support | ? | (Yes) | (Yes) | 1.0 | ? | ? | ? |
Selection
, the interface it belongs to.
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Selection/rangeCount