Users may use browser built-in features or extensions to choose whether to open a link in a new window, in the same window, in a new tab, the same tab, or in the background. This blog post explains how to use cy.window () to spy on the DOM prototype to detect when the application starts adding event listeners to the DOM elements. If an empty string ("") is specified or this parameter is omitted, a blank page is opened into the targeted browsing context. They also convey incorrect semantics to assistive technologies, like screen readers. Summary: in this tutorial, you will learn how to handle the load event that fires on the document, image, and script elements in JavaScript. Step 2. The onload event can be used to check the visitor's browser type and browser version, and load the proper version of the web page based on the information. To register for the beforeunload event, you use the window.addEventListener () method: window .addEventListener ( 'beforeunload' , (event) => { // do something here }); Code language: JavaScript (javascript) Since the window is the global object, you can omit it like this: addEventListener ( 'beforeunload' , (event) => { // do something here }); Are there tables of wastage rates for different fruit and veg? Specifies the width of the content area, including scrollbars. How to put a responsive clear button inside HTML input text field ? Content available under a Creative Commons license. In the above HTML page source, you can see the