GlobalEventHandlers.onselectstart

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This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The GlobalEventHandlers.onselectstart property represents the event handler that is called when a selectstart event reaches this object, i.e. when the user starts to make a new text selection on a web page.

Syntax

obj.onselectstart = function;

Example

document.onselectstart = function() {
  console.log("Selection started!");
}; 

For a full example, see our Key quote generator demo.

Specifications

Specification Status Comment
Selection API
The definition of 'GlobalEventHandlers.onselectstart' in that specification.
Working Draft Initial definition.

Browser compatibility

Feature Firefox (Gecko) Chrome Internet Explorer Opera Safari
Basic support 43 (43)[1]
52 (52)[2]
(Yes) (Yes) ? 1.3
Feature Firefox Mobile (Gecko) Android IE Mobile Opera Mobile Safari Mobile
onselectionchange 43.0 (43)[1]
52.0 (52)[2]
? ? ? ?

[1] This is implemented behind the dom.select_events.enabled preference, which defaults to false except on Nightly.

[2] This is now fully enabled on Firefox 52 release version.

See also

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