Window. If so, such event handler could be made passive. Most likely, it won’t be a problem if the browser starts scrolling before the background finishes redrawing. if you redraw the parallax background on each touch or scroll event. Please contribute data for '_event' (depth: 1) to the MDN compatibility data repository.When is this useful? E.g. The definition of 'resize' in that specification.

You could set up the event handler using the addEventListener() method: window.addEventListener('resize', reportWindowSize) Specifications Specificationĭocument Object Model (DOM) Level 3 Events Specification WidthOutput.textContent = window.innerWidth HeightOutput.textContent = window.innerHeight Window width: const heightOutput = document.querySelector('#height') Ĭonst widthOutput = document.querySelector('#width') Resize the browser window to fire the resize event. For instance, if you resize your browser window manually, JavaScript can alert you to that event. Handle Resize Events When a browser does something, JavaScript often knows about it. Bear in mind that since the example is running in an, you'll need to actually get the to resize before you see an effect. window1.resizeBy (-20, -60) This statement shrinks a window’s width by 20 pixels and its height by 60 pixels. The following example reports the window size each time it is resized.

See Resize Observer to read the draft document, and GitHub issues to read the on-going discussions. resizeTo method (window) If you want to resize the browser window by a specified amount of pixels, use the resizeBy method. There is a proposal to allow all elements to be notified of resize changes. Only handlers registered on the window object will receive resize events. However, resize events are only fired on the window object (i.e. It is still possible to set onresize attributes or use addEventListener() to set a handler on any element. In some earlier browsers it was possible to register resize event handlers on any HTML element. The resize event fires when the document view (window) has been resized.

Javascript window resize