TypeScript Sample - TypeScript with Dialog Window Control - Ignite UI The following code loads the app.js file after the page has been completely loaded. How can I find out which sectors are used by files on NTFS? Execute a JavaScript immediately after a page has been loaded: The onload event occurs when an object has been loaded. But we can use another event onbeforeunload. A window is opened. To handle the load event on images, you use the addEventListener() method of the image elements. Manage Settings The onload Event; The DOMContentLoaded Event; The unload Event; The beforeunload Event; Mouse Events; Keyboard Events; Scroll Events; Scroll an Element Into View; Focus Events; The haschange Event; Event Delegation; Simulate Events; Custom Events How to run a function when the page is loaded in JavaScript ? Hope that makes sense. Argument of type '(e: CustomEvent) => void' is not assignable to parameter of type 'EventListenerOrEventListenerObject', Use onFocus on a div with React and Typescript, Typescript addEventListener set event type, ReactJS and Typescript : refers to a value, but is being used as a type here (TS2749). Acidity of alcohols and basicity of amines, Partner is not responding when their writing is needed in European project application. If the name doesn't identify an existing context, a new context is created and given the specified name. That depends on if you want it to run when the script element is encountered or if you want it to run when the load event fires (which is after the entire document (including such things as images) has loaded). The DOMContentLoaded event happens on the document object. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. For example, if I want to have a pop-up, should I write (directly inside the