Window: beforeprint event

The beforeprint event is fired when the associated document is about to be printed or previewed for printing.

Examples

Using addEventListener():

window.addEventListener('beforeprint', (event) => {
  console.log('Before print');
});

Using the onbeforeprint event handler property:

window.onbeforeprint = (event) => {
  console.log('Before print');
};

Specification	Status
HTML Living Standard	Living Standard

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`beforeprint` event	Chrome Full support 63	Edge Full support Yes	Firefox Full support 6	IE Full support Yes	Opera Full support 50	Safari Full support 13	WebView Android Full support 63	Chrome Android Full support 63	Firefox Android ?	Opera Android Full support 46	Safari iOS Full support 13	Samsung Internet Android Full support 8.0