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The MouseEvent.shiftKey read-only property is a Boolean that indicates whether the shift key was pressed or not when a given mouse event occurs.

Syntax

var shiftKeyPressed = instanceOfMouseEvent.shiftKey

Return value

A Boolean, where true indicates that the key is pressed, and false indicates that the key is not pressed.

Example

This example logs the shiftKey property when you trigger a click event.

HTML

<p>Click anywhere to test the <code>shiftKey</code> property.</p>
<p id="log"></p>

JavaScript

let log = document.querySelector('#log');
document.addEventListener('click', logKey);

function logKey(e) {
  log.textContent = `The shift key is pressed: ${e.shiftKey}`;
}

Result

Specifications

Specification Status Comment
Document Object Model (DOM) Level 3 Events Specification
The definition of 'MouseEvent.shiftKey' in that specification.
Obsolete No change from Document Object Model (DOM) Level 2 Events Specification.
Document Object Model (DOM) Level 2 Events Specification
The definition of 'MouseEvent.shiftKey' in that specification.
Obsolete Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic supportChrome Full support YesEdge Full support YesFirefox Full support YesIE Full support YesOpera Full support YesSafari Full support YesWebView Android ? Chrome Android ? Edge Mobile Full support YesFirefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown

See also

Etiquetas do documento e colaboradores

Colaboradores desta página: mfluehr, janzenz, fscholz, libbymc, teoli, kscarfone, amycb, Jeremie
Última atualização por: mfluehr,