Your JavaScript has to be loaded from a Content Editor Web Part. With the JS onload event, you can Execute a JavaScript immediately after a page has been loaded. JavaScript. I would like to know how to run a javascript function on page load.. in my asp.net page. Syntax. Manipulate two selects on page load with jQuery. There are a few different ways to load a script on your page. How to call a JavaScript function on submit form? There is a difference between DOM is ready and when the whole page finished loading. How do I load an ImageView by URL on Android? Calling JavaScript function on code behind i.e. Hi, if i use the following code to execute js when "powerboat" is clicked, how can I get it to run as soon as the page is loaded?? How do I redirect my web page with JavaScript? How do I redirect my web page with JavaScript? How do I load an Image by URL using Picasso Library on Kotlin? Code included inside $( document ).ready() will only run once the page Document Object Model (DOM) is ready for JavaScript code to execute. Run function on page load once only. The idea is to use onload attribute in the body tag. JavaScript. This article is for XUL/JavaScript developers who want to have custom code executed each time a new page is loaded in browser/mail. Run JavaScript after page loaded completely using jQuery. For the window object, the load event is fired when the whole webpage (HTML) has loaded fully, including all dependent resources such as JavaScript files, CSS files, and images. window.onload runs after page load and all javascript is available, so the codeAddress() function can be declared anywhere within the page or linked js files. Summary: in this tutorial, you will learn how to handle the load event that fires on the document, image, and script elements in JavaScript. ScriptManager.RegisterStartupScript(GetType(), "Javascript", "javascript:FUNCTIONNAME(); ", true); You can use document.onload or window.onload JavaScript. function yourfunction() { /* do stuff on page load */ } window. How to call a JavaScript function on a click event? by Mahtab Hussain - Friday, 4 May 2018, 1:48 PM. This post provides a detailed overview of methods to accomplish this. Destroyed Let's take a quick look at each of these 4 stages. If you are running code on a page load it is likely you would want to run some cleanup code on page unload. Call JavaScript Function on Page Load