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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

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic support
Experimental
Chrome Full support YesEdge ? Firefox Full support 52
Full support 52
Full support 43
Disabled
Disabled From version 43: this feature is behind the dom.select_events.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE Full support YesOpera ? Safari Full support 1.3WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support 52
Full support 52
Full support 43
Disabled
Disabled From version 43: this feature is behind the dom.select_events.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android ? Safari iOS Full support YesSamsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
User must explicitly enable this feature.
User must explicitly enable this feature.

See also

Étiquettes et contributeurs liés au document

Dernière mise à jour par : fscholz,